updated mpdf to 5.7.2

6 files changed, 462 insertions, 245 deletions

diff --git a/inc/3rdparty/libraries/mpdf/classes/barcode.php b/inc/3rdparty/libraries/mpdf/classes/barcode.php
index 2a002693..9a230f0e 100644
--- a/inc/3rdparty/libraries/mpdf/classes/barcode.php
+++ b/inc/3rdparty/libraries/mpdf/classes/barcode.php
@@ -871,6 +871,7 @@ class PDFBarcode {
          * Very capable code, excellent density, high reliability; in very wide use world-wide
          */
         protected function barcode_c128($code, $type='B', $ean=false) {
+                $code = strcode2utf($code);     // mPDF 5.7.1   Allows e.g. <barcode code="5432&#013;1068" type="C128A" />
                 $chr = array(
                         '212222', /* 00 */
                         '222122', /* 01 */
diff --git a/inc/3rdparty/libraries/mpdf/classes/cssmgr.php b/inc/3rdparty/libraries/mpdf/classes/cssmgr.php
index 9bbbed9c..db325034 100644
--- a/inc/3rdparty/libraries/mpdf/classes/cssmgr.php
+++ b/inc/3rdparty/libraries/mpdf/classes/cssmgr.php
@@ -221,9 +221,8 @@ function ReadCSS($html) {
                 }
         }
 
-        // mPDF 5.5.13
         // Replace any background: url(data:image... with temporary image file reference
-        preg_match_all("/(url\(data:image\/(jpeg|gif|png);base64,(.*)\))/si", $CSSstr, $idata);
+        preg_match_all("/(url\(data:image\/(jpeg|gif|png);base64,(.*?)\))/si", $CSSstr, $idata);        // mPDF 5.7.2
         if (count($idata[0])) { 
                 for($i=0;$i<count($idata[0]);$i++) {
                         $file = _MPDF_TEMP_PATH.'_tempCSSidata'.RAND(1,10000).'_'.$i.'.'.$idata[2][$i];
@@ -699,6 +698,13 @@ function fixCSS($prop) {
                         }
                         else { $newprop[$k] = $v; }
                 }
+                else if ($k == 'LIST-STYLE') {  // mPDF 5.7.2
+                        if (preg_match('/(lower-roman|upper-roman|lower-latin|lower-alpha|upper-latin|upper-alpha|none|decimal|disc|circle|square|arabic-indic|bengali|devanagari|gujarati|gurmukhi|kannada|malayalam|oriya|persian|tamil|telugu|thai|urdu|cambodian|khmer|lao)/i',$v,$m)
+                        || preg_match('/U\+([a-fA-F0-9]+)/i',$v,$m)) { 
+                                $newprop['LIST-STYLE-TYPE'] = strtolower(trim($m[1]));
+                        }
+                }
+
 
                 else { 
                         $newprop[$k] = $v; 
diff --git a/inc/3rdparty/libraries/mpdf/classes/svg.php b/inc/3rdparty/libraries/mpdf/classes/svg.php
index 3efe50f9..571f4edd 100644
--- a/inc/3rdparty/libraries/mpdf/classes/svg.php
+++ b/inc/3rdparty/libraries/mpdf/classes/svg.php
@@ -808,13 +808,20 @@ $md = $sy * cos($t);
                 }
 
                 if (isset($critere_style['style'])){
-                        if (preg_match('/fill:\s*rgb\((\d+),\s*(\d+),\s*(\d+)\)/',$critere_style['style'], $m)) {
+                        if (preg_match('/fill:\s*rgb\((\d+),\s*(\d+),\s*(\d+)\)/i',$critere_style['style'], $m)) {      // mPDF 5.7.2
                                 $current_style['fill'] = '#'.str_pad(dechex($m[1]), 2, "0", STR_PAD_LEFT).str_pad(dechex($m[2]), 2, "0", STR_PAD_LEFT).str_pad(dechex($m[3]), 2, "0", STR_PAD_LEFT);
                         }
                         else { $tmp = preg_replace("/(.*)fill:\s*([a-z0-9#_()]*|none)(.*)/i","$2",$critere_style['style']);     // mPDF 4.4.003
                                 if ($tmp != $critere_style['style']){ $current_style['fill'] = $tmp; }
                         }
 
+                        // mPDF 5.7.2
+                        if (preg_match("/[^-]opacity:\s*([a-z0-9.]*|none)/i",$critere_style['style'], $m) ||
+                                preg_match("/^opacity:\s*([a-z0-9.]*|none)/i",$critere_style['style'], $m)) {
+                                $current_style['fill-opacity'] = $m[1];
+                                $current_style['stroke-opacity'] = $m[1];
+                        }
+
                         $tmp = preg_replace("/(.*)fill-opacity:\s*([a-z0-9.]*|none)(.*)/i","$2",$critere_style['style']);
                         if ($tmp != $critere_style['style']){ $current_style['fill-opacity'] = $tmp;}
 
@@ -852,6 +859,12 @@ $md = $sy * cos($t);
                         if ($tmp != $critere_style['style']){ $current_style['stroke-dashoffset'] = $tmp;}
 
                 }
+                // mPDF 5.7.2
+                if(isset($critere_style['opacity'])){
+                        $current_style['fill-opacity'] = $critere_style['opacity'];
+                        $current_style['stroke-opacity'] = $critere_style['opacity'];
+                }
+
                 if(isset($critere_style['fill'])){
                         $current_style['fill'] = $critere_style['fill'];
                 }
@@ -909,7 +922,7 @@ $md = $sy * cos($t);
         //      Cette fonction ecrit le style dans le stream svg.
         function svgStyle($critere_style, $attribs, $element){
                 $path_style = '';
-                if (substr_count($critere_style['fill'],'url')>0){
+                if (substr_count($critere_style['fill'],'url')>0 && $element != 'line'){
                         //
                         // couleur degradé
                         $id_gradient = preg_replace("/url\(#([\w_]*)\)/i","$1",$critere_style['fill']);
@@ -926,7 +939,7 @@ $md = $sy * cos($t);
 
                 }
                 // mPDF 4.4.005   Used as indirect setting for currentColor
-                else if (strtolower($critere_style['fill']) == 'currentcolor'){
+                else if (strtolower($critere_style['fill']) == 'currentcolor' && $element != 'line'){
                         $col = $this->mpdf_ref->ConvertColor($critere_style['color']);
                         if ($col) {
                                 // mPDF 5.0.051
@@ -937,7 +950,7 @@ $md = $sy * cos($t);
                                 $style .= 'F';
                         }
                 }
-                else if ($critere_style['fill'] != 'none'){
+                else if ($critere_style['fill'] != 'none' && $element != 'line'){
                         $col = $this->mpdf_ref->ConvertColor($critere_style['fill']);
                         if ($col) {
                                 // mPDF 5.0.051
@@ -1898,12 +1911,10 @@ function Arcto($x1, $y1, $x2, $y2, $rx, $ry, $angle, $largeArcFlag, $sweepFlag)
                         $xbase = $x;
                         $ybase = -$y;
 
-                        // mPDF 5.0.041
-                        // mPDF 5.0.051
-                        $path_cmd =  sprintf('q BT /F%d %s %.3F Tf %.3F %.3F Td %s Tr %s %s %s Tj ET Q ',$this->mpdf_ref->CurrentFont['i'],$opacitystr, $this->mpdf_ref->FontSizePt,$pdfx*$this->kp,$pdfy*$this->kp,$render,$fillstr,$strokestr,$txt)."\n";
+                        // mPDF 5.7.2
+                        $path_cmd =  sprintf('q BT /F%d %.3F Tf %s %.3F %.3F Td %s Tr %s %s %s Tj ET Q ',$this->mpdf_ref->CurrentFont['i'], $this->mpdf_ref->FontSizePt, $opacitystr, $pdfx*$this->kp,$pdfy*$this->kp,$render,$fillstr,$strokestr,$txt)."\n";
                         unset($this->txt_data[0], $this->txt_data[1],$this->txt_data[2]);
 
-                        // mPDF 5.4.12
                         if (isset($current_style['font-size-parent'])) {
                                 $this->mpdf_ref->SetFontSize($current_style['font-size-parent']);
                         }
@@ -1912,7 +1923,6 @@ function Arcto($x1, $y1, $x2, $y2, $rx, $ry, $angle, $largeArcFlag, $sweepFlag)
                 {
                         return ' ';
                 }
-//              $path_cmd .= 'h ';      // mPDF 5.0
                 return $path_cmd;
         }
 
@@ -1964,8 +1974,8 @@ function svgDefineTxtStyle($critere_style)
                         $tmp = preg_replace("/(.*)stroke-dashoffset:\s*([a-z0-9.]*|none)(.*)/i","$2",$critere_style['style']);
                         if ($tmp != $critere_style['style']){ $current_style['stroke-dashoffset'] = $tmp;}
 
-                        // mPDF 5.0.039
-                        $tmp = preg_replace("/(.*)font-family:\s*([a-z0-9.]*|none)(.*)/i","$2",$critere_style['style']);
+                        // mPDF 5.7.2
+                        $tmp = preg_replace("/(.*)font-family:\s*([a-z0-9.\"' ,\-]*|none)(.*)/i","$2",$critere_style['style']);
                         if ($tmp != $critere_style['style']){ $critere_style['font-family'] = $tmp;}
 
                         $tmp = preg_replace("/(.*)font-size:\s*([a-z0-9.]*|none)(.*)/i","$2",$critere_style['style']);
@@ -2120,15 +2130,15 @@ function svgDefineTxtStyle($critere_style)
                 }
 
 
-                // mPDF 4.4.003
                 if (preg_match('/xlink:href=/si',$data)) {
+                        // GRADIENTS
                         // Get links
                         preg_match_all('/(<(linearGradient|radialgradient)[^>]*)xlink:href=["\']#(.*?)["\'](.*?)\/>/si',$data, $links);
-                        if (count($links[0])) { $links[5] = array(); }  // mPDF 4.5.010
+                        if (count($links[0])) { $links[5] = array(); }
                         // Delete links from data - keeping in $links
                         for ($i=0; $i<count($links[0]); $i++) {
-                                $links[5][$i] = 'tmpLink'.RAND(100000,9999999); // mPDF 4.5.010
-                                $data = preg_replace('/'.preg_quote($links[0][$i],'/').'/is', '<MYLINKS'.$links[5][$i].'>' , $data);    // mPDF 4.5.010
+                                $links[5][$i] = 'tmpLink'.RAND(100000,9999999);
+                                $data = preg_replace('/'.preg_quote($links[0][$i],'/').'/is', '<MYLINKS'.$links[5][$i].'>' , $data);
                         }
                         // Get targets
                         preg_match_all('/<(linearGradient|radialgradient)([^>]*)id=["\'](.*?)["\'](.*?)>(.*?)<\/(linearGradient|radialgradient)>/si',$data, $m);
@@ -2140,13 +2150,110 @@ function svgDefineTxtStyle($critere_style)
                         }
                         // Add back links this time as targets (gradients)
                         for ($i=0; $i<count($links[0]); $i++) {
-                                $def = $links[1][$i] .' '.$links[4][$i].'>'. $stops[$links[3][$i]].'</'.$links[2][$i] .'>' ;    // mPDF 4.5.010
-                                $data = preg_replace('/<MYLINKS'.$links[5][$i].'>/is', $def , $data);   // mPDF 4.5.010
+                                $def = $links[1][$i] .' '.$links[4][$i].'>'. $stops[$links[3][$i]].'</'.$links[2][$i] .'>' ;
+                                $data = preg_replace('/<MYLINKS'.$links[5][$i].'>/is', $def , $data);
+                        }
+
+                        // mPDF 5.7.2
+                        // <USE>
+                        preg_match_all('/<use ([^>]*)xlink:href=["\']#([^>]*?)["\']([^>]*)\/>/si',$data, $links);
+                        for ($i=0; $i<count($links[0]); $i++) {
+
+                                // Get the item to use from defs
+                                $insert = '';
+                                if (preg_match('/<([a-zA-Z]*) [^>]*id=["\']'.$links[2][$i].'["\'][^>]*\/>/si',$data, $m)) {
+                                        $insert = $m[0]; 
+                                }
+                                if (!$insert && preg_match('/<([a-zA-Z]*) [^>]*id=["\']'.$links[2][$i].'["\']/si',$data, $m)) {
+
+                                        if (preg_match('/<'.$m[1].'[^>]*id=["\']'.$links[2][$i].'["\'][^>]*>.*?<\/'.$m[1].'>/si',$data, $m)) {
+                                                $insert = $m[0]; 
+                                        }
+                                }
+
+                                if ($insert) {
+
+                                        $inners = $links[1][$i] . ' ' . $links[3][$i];
+                                        // Change x,y coords to translate()
+                                        if (preg_match('/y=["\']([^>]*?)["\']/', $inners, $m)) { $y = $m[1]; }
+                                        else { $y = 0; }
+                                        if (preg_match('/x=["\']([^>]*?)["\']/', $inners, $m)) { $x = $m[1]; }
+                                        else { $x = 0; }
+                                        if ($x || $y) {
+                                                $inners = preg_replace('/(y|x)=["\']([^>]*?)["\']/', '', $inners);
+                                                if (preg_match('/transform=["\']([^>]*?)["\']/', $inners, $m)) {
+                                                        if (preg_match('/translate\(\s*([0-9\.]+)\s*,\s*([0-9\.]+)\s*\)/', $m[1], $mm)) {
+                                                                $transform = $m[1];     // transform="...."
+                                                                $x += $mm[1];
+                                                                $y += $mm[2];
+                                                                $transform = preg_replace('/'.preg_quote($mm[0],'/').'/', '', $transform);
+                                                                $transform = 'transform="'.$transform.' translate('.$x.', '.$y.')"';
+                                                                $inners = preg_replace('/'.preg_quote($m[0],'/').'/is', $transform, $inners);
+                                                        }
+                                                        else {
+                                                                $inners = preg_replace('/'.preg_quote($m[0],'/').'/is', 'transform="'.$m[1].' translate('.$x.', '.$y.')"', $inners);
+                                                        }
+                                                }
+                                                else {
+                                                        $inners .= ' transform="translate('.$x.', '.$y.')"';
+                                                }
+                                        }
+                                }
+                                $replacement = '<g '.$inners.'>'.$insert.'</g>';
+                                $data = preg_replace('/'.preg_quote($links[0][$i],'/').'/is', $replacement, $data);
+                        }
+                        preg_match_all('/<use ([^>]*)xlink:href=["\']#([^>]*?)["\']([^>]*)>\s*<\/use>/si',$data, $links);
+                        for ($i=0; $i<count($links[0]); $i++) {
+
+                                // Get the item to use from defs
+                                $insert = '';
+                                if (preg_match('/<([a-zA-Z]*) [^>]*id=["\']'.$links[2][$i].'["\'][^>]*\/>/si',$data, $m)) {
+                                        $insert = $m[0]; 
+                                }
+                                if (!$insert && preg_match('/<([a-zA-Z]*) [^>]*id=["\']'.$links[2][$i].'["\']/si',$data, $m)) {
+
+                                        if (preg_match('/<'.$m[1].'[^>]*id=["\']'.$links[2][$i].'["\'][^>]*>.*?<\/'.$m[1].'>/si',$data, $m)) {
+                                                $insert = $m[0]; 
+                                        }
+                                }
+
+                                if ($insert) {
+
+                                        $inners = $links[1][$i] . ' ' . $links[3][$i];
+                                        // Change x,y coords to translate()
+                                        if (preg_match('/y=["\']([^>]*?)["\']/', $inners, $m)) { $y = $m[1]; }
+                                        else { $y = 0; }
+                                        if (preg_match('/x=["\']([^>]*?)["\']/', $inners, $m)) { $x = $m[1]; }
+                                        else { $x = 0; }
+                                        if ($x || $y) {
+                                                $inners = preg_replace('/(y|x)=["\']([^>]*?)["\']/', '', $inners);
+                                                if (preg_match('/transform=["\']([^>]*?)["\']/', $inners, $m)) {
+                                                        if (preg_match('/translate\(\s*([0-9\.]+)\s*,\s*([0-9\.]+)\s*\)/', $m[1], $mm)) {
+                                                                $transform = $m[1];     // transform="...."
+                                                                $x += $mm[1];
+                                                                $y += $mm[2];
+                                                                $transform = preg_replace('/'.preg_quote($mm[0],'/').'/', '', $transform);
+                                                                $transform = 'transform="'.$transform.' translate('.$x.', '.$y.')"';
+                                                                $inners = preg_replace('/'.preg_quote($m[0],'/').'/is', $transform, $inners);
+                                                        }
+                                                        else {
+                                                                $inners = preg_replace('/'.preg_quote($m[0],'/').'/is', 'transform="'.$m[1].' translate('.$x.', '.$y.')"', $inners);
+                                                        }
+                                                }
+                                                else {
+                                                        $inners .= ' transform="translate('.$x.', '.$y.')"';
+                                                }
+                                        }
+                                        $replacement = '<g '.$inners.'>'.$insert.'</g>';
+                                        $data = preg_replace('/'.preg_quote($links[0][$i],'/').'/is', $replacement, $data);
+
+
+                                }
                         }
                 }
-                // mPDF 4.4.003 - Removes <pattern>
+                // Removes <pattern>
                 $data = preg_replace('/<pattern.*?<\/pattern>/is', '', $data);
-                // mPDF 4.4.003 - Removes <marker>
+                // Removes <marker>
                 $data = preg_replace('/<marker.*?<\/marker>/is', '', $data);
 
                 $this->svg_info['data'] = $data;
@@ -2155,14 +2262,96 @@ function svgDefineTxtStyle($critere_style)
                 
                 //
                 //      chargement unique des fonctions
-                if(!function_exists("xml_svg2pdf_start")){      // mPDF 5.3.76
+                if(!function_exists("xml_svg2pdf_start")){
 
                         function xml_svg2pdf_start($parser, $name, $attribs){
                                 //
                                 //      definition
                                 global $svg_class, $last_gradid;
 
-                                // mPDF 4.4.003
+                                // mPDF 5.7.2
+                                if (strtolower($name) == 'lineargradient'){
+                                                $tmp_gradient = array(
+                                                        'type' => 'linear',
+                                                        'info' => array(
+                                                                'x1' => $attribs['x1'],
+                                                                'y1' => $attribs['y1'],
+                                                                'x2' => $attribs['x2'],
+                                                                'y2' => $attribs['y2']
+                                                        ),
+                                                        'transform' => $attribs['gradientTransform'],
+                                                        'units' => $attribs['gradientUnits'],
+                                                        'spread' => $attribs['spreadMethod'],
+                                                        'color' => array()
+                                                );
+                                                $last_gradid = $attribs['id'];
+                                                $svg_class->svgAddGradient($attribs['id'],$tmp_gradient);
+                                        return;
+                                }
+                                else if (strtolower($name) == 'radialgradient'){
+                                                $tmp_gradient = array(
+                                                        'type' => 'radial',
+                                                        'info' => array(
+                                                                'x0' => $attribs['cx'],
+                                                                'y0' => $attribs['cy'],
+                                                                'x1' => $attribs['fx'],
+                                                                'y1' => $attribs['fy'],
+                                                                'r' => $attribs['r']
+                                                        ),
+                                                        'transform' => $attribs['gradientTransform'],
+                                                        'units' => $attribs['gradientUnits'],
+                                                        'spread' => $attribs['spreadMethod'],
+                                                        'color' => array()
+                                                );
+                                                $last_gradid = $attribs['id'];
+                                                $svg_class->svgAddGradient($attribs['id'],$tmp_gradient);
+                                        return;
+                                }
+                                else if (strtolower($name) == 'stop'){
+                                                if (!$last_gradid) break;
+                                                if (isset($attribs['style']) AND preg_match('/stop-color:\s*([^;]*)/i',$attribs['style'],$m)) {
+                                                        $color = trim($m[1]);
+                                                } else if (isset($attribs['stop-color'])) {
+                                                        $color = $attribs['stop-color'];
+                                                }
+                                                $col = $svg_class->mpdf_ref->ConvertColor($color);
+
+                                                if ($col{0}==3 || $col{0}==5) { // RGB
+                                                        $color_final = sprintf('%.3F %.3F %.3F',ord($col{1})/255,ord($col{2})/255,ord($col{3})/255);
+                                                        $svg_class->svg_gradient[$last_gradid]['colorspace']='RGB';
+                                                }
+                                                else if ($col{0}==4 || $col{0}==6) {    // CMYK
+                                                        $color_final = sprintf('%.3F %.3F %.3F %.3F',ord($col{1})/100,ord($col{2})/100,ord($col{3})/100,ord($col{4})/100);
+                                                        $svg_class->svg_gradient[$last_gradid]['colorspace']='CMYK';
+                                                }
+                                                else if ($col{0}==1) {  // Grayscale
+                                                        $color_final = sprintf('%.3F',ord($col{1})/255);
+                                                        $svg_class->svg_gradient[$last_gradid]['colorspace']='Gray';
+                                                }
+
+                                                $stop_opacity = 1;
+                                                if (isset($attribs['style']) AND preg_match('/stop-opacity:\s*([0-9.]*)/i',$attribs['style'],$m)) {
+                                                        $stop_opacity = $m[1];
+                                                } else if (isset($attribs['stop-opacity'])) {
+                                                        $stop_opacity = $attribs['stop-opacity'];
+                                                }
+                                                else if ($col{0}==5) {  // RGBa
+                                                        $stop_opacity = ord($col{4}/100);
+                                                }
+                                                else if ($col{0}==6) {  // CMYKa
+                                                        $stop_opacity = ord($col{5}/100);
+                                                }
+
+                                                $tmp_color = array(
+                                                        'color' => $color_final,
+                                                        'offset' => $attribs['offset'],
+                                                        'opacity' => $stop_opacity
+                                                );
+                                                array_push($svg_class->svg_gradient[$last_gradid]['color'],$tmp_color);
+                                        return;
+                                }
+                                if ($svg_class->inDefs) { return; }
+
                                 $svg_class->xbase = 0;
                                 $svg_class->ybase = 0;
                                 switch (strtolower($name)){
@@ -2293,99 +2482,6 @@ function svgDefineTxtStyle($critere_style)
                                         $path_style = $svg_class->svgDefineStyle($critere_style);
                                         break;
 
-                                case 'lineargradient':
-                                                $tmp_gradient = array(
-                                                        'type' => 'linear',
-                                                        'info' => array(
-                                                                'x1' => $attribs['x1'],
-                                                                'y1' => $attribs['y1'],
-                                                                'x2' => $attribs['x2'],
-                                                                'y2' => $attribs['y2']
-                                                        ),
-                                                        'transform' => $attribs['gradientTransform'],
-                                                        'units' => $attribs['gradientUnits'],   /* mPDF 4.4.003 */
-                                                        'spread' => $attribs['spreadMethod'],   /* mPDF 5.0.040 */
-                                                        'color' => array()
-                                                );
-
-                                                $last_gradid = $attribs['id'];
-                                                $svg_class->svgAddGradient($attribs['id'],$tmp_gradient);
-                                        break;
-
-                                case 'radialgradient':
-                                                $tmp_gradient = array(
-                                                        'type' => 'radial',
-                                                        'info' => array(
-                                                                'x0' => $attribs['cx'],
-                                                                'y0' => $attribs['cy'],
-                                                                'x1' => $attribs['fx'],
-                                                                'y1' => $attribs['fy'],
-                                                                'r' => $attribs['r']
-                                                        ),
-                                                        'transform' => $attribs['gradientTransform'],
-                                                        'units' => $attribs['gradientUnits'],   /* mPDF 4.4.003 */
-                                                        'spread' => $attribs['spreadMethod'],   /* mPDF 5.0.040 */
-                                                        'color' => array()
-                                                );
-
-                                                $last_gradid = $attribs['id'];
-
-                                                $svg_class->svgAddGradient($attribs['id'],$tmp_gradient);
-
-                                        break;
-
-                                case 'stop':
-                                                if (!$last_gradid) break;
-                                                // mPDF 4.4.003  // mPDF 5.0.040
-                                                if (isset($attribs['style']) AND preg_match('/stop-color:\s*([^;]*)/i',$attribs['style'],$m)) {
-                                                        $color = trim($m[1]);
-                                                } else if (isset($attribs['stop-color'])) {
-                                                        $color = $attribs['stop-color'];
-                                                }
-                                                $col = $svg_class->mpdf_ref->ConvertColor($color);
-
-                                                // mPDF 5.0.051
-                                                // mPDF 5.3.74
-                                                if ($col{0}==3 || $col{0}==5) { // RGB
-                                                        $color_final = sprintf('%.3F %.3F %.3F',ord($col{1})/255,ord($col{2})/255,ord($col{3})/255);
-                                                        $svg_class->svg_gradient[$last_gradid]['colorspace']='RGB';
-                                                }
-                                                else if ($col{0}==4 || $col{0}==6) {    // CMYK
-                                                        $color_final = sprintf('%.3F %.3F %.3F %.3F',ord($col{1})/100,ord($col{2})/100,ord($col{3})/100,ord($col{4})/100);
-                                                        $svg_class->svg_gradient[$last_gradid]['colorspace']='CMYK';
-                                                }
-                                                else if ($col{0}==1) {  // Grayscale
-                                                        $color_final = sprintf('%.3F',ord($col{1})/255);
-                                                        $svg_class->svg_gradient[$last_gradid]['colorspace']='Gray';
-                                                }
-
-
-                                                // mPDF 5.0.020
-                                                $stop_opacity = 1;
-                                                // mPDF 4.4.003
-                                                if (isset($attribs['style']) AND preg_match('/stop-opacity:\s*([0-9.]*)/i',$attribs['style'],$m)) {
-                                                        $stop_opacity = $m[1];
-                                                } else if (isset($attribs['stop-opacity'])) {
-                                                        $stop_opacity = $attribs['stop-opacity'];
-                                                }
-                                                // mPDF 5.0.051
-                                                // mPDF 5.3.74
-                                                else if ($col{0}==5) {  // RGBa
-                                                        $stop_opacity = ord($col{4}/100);
-                                                }
-                                                else if ($col{0}==6) {  // CMYKa
-                                                        $stop_opacity = ord($col{5}/100);
-                                                }
-
-                                                $tmp_color = array(
-                                                        'color' => $color_final,
-                                                        'offset' => $attribs['offset'],
-                                                        'opacity' => $stop_opacity
-                                                );
-                                                array_push($svg_class->svg_gradient[$last_gradid]['color'],$tmp_color);
-                                        break;
-
-
                                 case 'a':
                                                 if (isset($attribs['xlink:href'])) {
                                                         unset($attribs['xlink:href']);  // this should be a hyperlink
@@ -2403,7 +2499,6 @@ function svgDefineTxtStyle($critere_style)
                                         break;
 
                                 case 'text':
-                                                // mPDF 4.4.003
                                                 $array_style = $svg_class->svgDefineStyle($attribs);
                                                 if ($array_style['transformations']) {
                                                         $svg_class->svgWriteString(' q '.$array_style['transformations']);
@@ -2436,6 +2531,7 @@ function svgDefineTxtStyle($critere_style)
                         function characterData($parser, $data)
                         {
                                 global $svg_class;
+                                if ($svg_class->inDefs) { return; }             // mPDF 5.7.2
                                 if(isset($svg_class->txt_data[2])) {
                                         $svg_class->txt_data[2] .= $data;
                                 }
@@ -2447,6 +2543,13 @@ function svgDefineTxtStyle($critere_style)
 
                         function xml_svg2pdf_end($parser, $name){
                                 global $svg_class;
+                                // Don't output stuff inside <defs>
+                                // mPDF 5.7.2
+                                if ($name == 'defs') {
+                                        $svg_class->inDefs = false;
+                                        return;
+                                }
+                                if ($svg_class->inDefs) { return; }
                                 switch($name){
 
                                         case "g":
diff --git a/inc/3rdparty/libraries/mpdf/classes/tocontents.php b/inc/3rdparty/libraries/mpdf/classes/tocontents.php
index 4e0065d2..b1b61446 100644
--- a/inc/3rdparty/libraries/mpdf/classes/tocontents.php
+++ b/inc/3rdparty/libraries/mpdf/classes/tocontents.php
@@ -224,7 +224,6 @@ function insertTOC() {
                 $tocstart=count($this->mpdf->pages);
                 if ($toc_preHTML) { $this->mpdf->WriteHTML($toc_preHTML); }
 
-
                 // mPDF 5.6.19
                 $html ='<div class="mpdf_toc" id="mpdf_toc_'.$toc_id.'">';
                 foreach($this->_toc as $t) {
@@ -268,7 +267,7 @@ function insertTOC() {
         $s .= $this->mpdf->PrintBodyBackgrounds();
 
         $s .= $this->mpdf->PrintPageBackgrounds();
-        $this->mpdf->pages[$this->mpdf->page] = preg_replace('/(___BACKGROUND___PATTERNS'.date('jY').')/', "\n".$s."\n".'\\1', $this->mpdf->pages[$this->mpdf->page]);
+        $this->mpdf->pages[$this->mpdf->page] = preg_replace('/(___BACKGROUND___PATTERNS'.$this->mpdf->uniqstr.')/', "\n".$s."\n".'\\1', $this->mpdf->pages[$this->mpdf->page]);
         $this->mpdf->pageBackgrounds = array();
 
         //Page footer
diff --git a/inc/3rdparty/libraries/mpdf/includes/functions.php b/inc/3rdparty/libraries/mpdf/includes/functions.php
index 03f47090..78683af8 100644
--- a/inc/3rdparty/libraries/mpdf/includes/functions.php
+++ b/inc/3rdparty/libraries/mpdf/includes/functions.php
@@ -1,5 +1,13 @@
 <?php
 
+// mPDF 5.7
+// Replace a section of an array with the elements in reverse
+function array_splice_reverse(&$arr, $offset, $length) {
+        $tmp = (array_reverse(array_slice($arr, $offset, $length)));
+        array_splice($arr, $offset, $length, $tmp);
+}
+
+
 // mPDF 5.6.23
 function array_insert(&$array, $value, $offset) {
         if (is_array($array)) {
@@ -92,12 +100,30 @@ function PreparePreText($text,$ff='//FF//') {
 if(!function_exists('strcode2utf')){ 
   function strcode2utf($str,$lo=true) {
         //converts all the &#nnn; and &#xhhh; in a string to Unicode
-        if ($lo) { $lo = 1; } else { $lo = 0; }
-        $str = preg_replace('/\&\#([0-9]+)\;/me', "code2utf('\\1',{$lo})",$str);
-        $str = preg_replace('/\&\#x([0-9a-fA-F]+)\;/me', "codeHex2utf('\\1',{$lo})",$str);
+        // mPDF 5.7
+        if ($lo) {
+                $str = preg_replace_callback('/\&\#([0-9]+)\;/m', 'code2utf_lo_callback', $str);
+                $str = preg_replace_callback('/\&\#x([0-9a-fA-F]+)\;/m', 'codeHex2utf_lo_callback', $str);
+        }
+        else {
+                $str = preg_replace_callback('/\&\#([0-9]+)\;/m', 'code2utf_callback', $str);
+                $str = preg_replace_callback('/\&\#x([0-9a-fA-F]+)\;/m', 'codeHex2utf_callback', $str);
+        }
         return $str;
   }
 }
+function code2utf_callback($matches) {
+        return code2utf($matches[1], 0);
+}
+function code2utf_lo_callback($matches) {
+        return code2utf($matches[1], 1);
+}
+function codeHex2utf_callback($matches) {
+        return codeHex2utf($matches[1], 0);
+}
+function codeHex2utf_lo_callback($matches) {
+        return codeHex2utf($matches[1], 1);
+}
 
 if(!function_exists('code2utf')){ 
   function code2utf($num,$lo=true){
diff --git a/inc/3rdparty/libraries/mpdf/mpdf.php b/inc/3rdparty/libraries/mpdf/mpdf.php
index f12dfec0..fd4f57b3 100644
--- a/inc/3rdparty/libraries/mpdf/mpdf.php
+++ b/inc/3rdparty/libraries/mpdf/mpdf.php
@@ -2,10 +2,10 @@
 
 // ******************************************************************************
 // Software: mPDF, Unicode-HTML Free PDF generator                              *
-// Version:  5.7     based on                                                   *
+// Version:  5.7.2     based on                                                   *
 //           FPDF by Olivier PLATHEY                                            *
 //           HTML2FPDF by Renato Coelho                                         *
-// Date:     2013-07-14                                                         *
+// Date:     2013-09-01                                                         *
 // Author:   Ian Back <ianb@bpm1.com>                                           *
 // License:  GPL                                                                *
 //                                                                              *
@@ -13,7 +13,7 @@
 // ******************************************************************************
 
 
-define('mPDF_VERSION','5.7');
+define('mPDF_VERSION','5.7.2');
 
 //Scale factor
 define('_MPDFK', (72/25.4));
@@ -269,6 +269,7 @@ var $directw;
 //////////////////////
 // INTERNAL VARIABLES
 //////////////////////
+var $uniqstr;   // mPDF 5.7.2
 var $writingToC;        // mPDF 5.6.38
 // mPDF 5.6.01
 var $layers;
@@ -850,6 +851,7 @@ function mPDF($mode='',$format='A4',$default_font_size=0,$default_font='',$mgl=1
         $this->useSubstitutionsMB =& $this->useSubstitutions;
 
         $this->writingToC = false;      // mPDF 5.6.38
+        $this->uniqstr = '20110230';    // mPDF 5.7.2
         // mPDF 5.6.01
         $this->layers = array();
         $this->current_layer = 0;
@@ -1146,7 +1148,7 @@ function mPDF($mode='',$format='A4',$default_font_size=0,$default_font='',$mgl=1
         $optcore = false;
         $onlyCoreFonts = false;
         if (preg_match('/([\-+])aCJK/i',$mode, $m)) {
-                preg_replace('/([\-+])aCJK/i','',$mode);
+                $mode = preg_replace('/([\-+])aCJK/i','',$mode);
                 if ($m[1]=='+') { $this->useAdobeCJK = true; }
                 else { $this->useAdobeCJK = false; }
         }
@@ -1682,8 +1684,8 @@ function SetAlpha($alpha, $bm='Normal', $return=false, $mode='B') {
                 $alpha = 1; 
         }
         $a = array('BM'=>'/'.$bm);
-        if ($mode=='F' || $mode='B') $a['ca'] = $alpha;
-        if ($mode=='S' || $mode='B') $a['CA'] = $alpha;
+        if ($mode=='F' || $mode=='B') $a['ca'] = $alpha;        // mPDF 5.7.2
+        if ($mode=='S' || $mode=='B') $a['CA'] = $alpha;        // mPDF 5.7.2
         $gs = $this->AddExtGState($a);
         if ($return) { return sprintf('/GS%d gs', $gs); }
         else { $this->_out(sprintf('/GS%d gs', $gs)); }
@@ -1765,7 +1767,7 @@ function Close() {
         $s .= $this->PrintBodyBackgrounds();
 
         $s .= $this->PrintPageBackgrounds();
-        $this->pages[$this->page] = preg_replace('/(___BACKGROUND___PATTERNS'.date('jY').')/', "\n".$s."\n".'\\1', $this->pages[$this->page]);
+        $this->pages[$this->page] = preg_replace('/(___BACKGROUND___PATTERNS'.$this->uniqstr.')/', "\n".$s."\n".'\\1', $this->pages[$this->page]);
         $this->pageBackgrounds = array();
 
         if($this->visibility!='visible')
@@ -2344,7 +2346,7 @@ function AddPage($orientation='',$condition='', $resetpagenum='', $pagenumstyle=
                 $s = $this->PrintPageBackgrounds();
 
                 // Writes after the marker so not overwritten later by page background etc.
-                $this->pages[$this->page] = preg_replace('/(___BACKGROUND___PATTERNS'.date('jY').')/', '\\1'."\n".$s."\n", $this->pages[$this->page]);
+                $this->pages[$this->page] = preg_replace('/(___BACKGROUND___PATTERNS'.$this->uniqstr.')/', '\\1'."\n".$s."\n", $this->pages[$this->page]);
                 $this->pageBackgrounds = array();
                 $family=$this->FontFamily;
                 $style=$this->FontStyle.($this->U ? 'U' : '').($this->S ? 'S' : '');
@@ -2485,7 +2487,7 @@ function AddPage($orientation='',$condition='', $resetpagenum='', $pagenumstyle=
                 $s .= $this->PrintBodyBackgrounds();
 
                 $s .= $this->PrintPageBackgrounds();
-                $this->pages[$this->page] = preg_replace('/(___BACKGROUND___PATTERNS'.date('jY').')/', "\n".$s."\n".'\\1', $this->pages[$this->page]);
+                $this->pages[$this->page] = preg_replace('/(___BACKGROUND___PATTERNS'.$this->uniqstr.')/', "\n".$s."\n".'\\1', $this->pages[$this->page]);
                 $this->pageBackgrounds = array();
         }
 
@@ -2545,9 +2547,9 @@ function AddPage($orientation='',$condition='', $resetpagenum='', $pagenumstyle=
         }
 
         // Tiling Patterns
-        $this->_out('___PAGE___START'.date('jY'));
-        $this->_out('___BACKGROUND___PATTERNS'.date('jY'));
-        $this->_out('___HEADER___MARKER'.date('jY'));
+        $this->_out('___PAGE___START'.$this->uniqstr);
+        $this->_out('___BACKGROUND___PATTERNS'.$this->uniqstr);
+        $this->_out('___HEADER___MARKER'.$this->uniqstr);
         $this->pageBackgrounds = array();
 
         //Set line cap style to square
@@ -3628,9 +3630,8 @@ function Cell($w,$h=0,$txt='',$border=0,$ln=0,$align='',$fill=0,$link='', $curre
         $oldcolumn = $this->CurrCol;
         // Automatic page break
         // Allows PAGE-BREAK-AFTER = avoid to work
-
         if (!$this->tableLevel && (($this->y+$this->divheight>$this->PageBreakTrigger) || ($this->y+$h>$this->PageBreakTrigger) || 
-                ($this->y+($h*2)>$this->PageBreakTrigger && $this->blk[$this->blklvl]['page_break_after_avoid'])) and !$this->InFooter and $this->AcceptPageBreak()) {
+                ($this->y+($h*2)+$this->blk[$this->blklvl]['padding_bottom']+$this->blk[$this->blklvl]['margin_bottom']>$this->PageBreakTrigger && $this->blk[$this->blklvl]['page_break_after_avoid'])) and !$this->InFooter and $this->AcceptPageBreak()) {   // mPDF 5.7.2
                 $x=$this->x;//Current X position
 
 
@@ -6086,6 +6087,17 @@ function WriteFlowingBlock( $s)
                         $savedContent = array_pop( $content );
                         $savedContentB = array_pop($contentB);  // mPDF 5.6.20
                         $savedFont = array_pop( $font );
+
+                        // mPDF 5.7.2
+                        // e.g: |first chunk |second chunk |[IndexEntry]|doesntfit
+                        if (isset($this->objectbuffer[(count($content)-1)]) && $this->objectbuffer[(count($content)-1)]['OUTER-WIDTH'] < 0.001) {
+                                $savedObj = $this->objectbuffer[(count($content)-1)];
+                                array_pop( $content );
+                                array_pop( $contentB );
+                                array_pop( $font );
+                                array_pop( $this->objectbuffer );
+                        }
+
                         // trim any trailing spaces off the last bit of content
                         $currContent =& $content[ count( $content ) - 1 ];
                         $currContent = rtrim( $currContent );
@@ -6347,6 +6359,10 @@ function WriteFlowingBlock( $s)
                         $this->keep_block_together = 0;
                 }
 
+                if ($this->kwt && !$is_table) { // mPDF 5.7+
+                        $this->printkwtbuffer();
+                        $this->kwt = false;
+                }
 
 /*-- COLUMNS --*/
                 // COLS
@@ -6913,7 +6929,7 @@ function Image($file,$x,$y,$w=0,$h=0,$type='',$link='',$paint=true, $constrain=t
 
           if ($this->watermarkImgBehind) { 
                 $outstring = $this->watermarkImgAlpha . "\n" . $outstring . "\n" . $this->SetAlpha(1, 'Normal', true) . "\n";
-                $this->pages[$this->page] = preg_replace('/(___BACKGROUND___PATTERNS'.date('jY').')/', "\n".$outstring."\n".'\\1', $this->pages[$this->page]);
+                $this->pages[$this->page] = preg_replace('/(___BACKGROUND___PATTERNS'.$this->uniqstr.')/', "\n".$outstring."\n".'\\1', $this->pages[$this->page]);
           }
           else { $this->_out($outstring); }
 
@@ -7387,7 +7403,7 @@ function Output($name='',$dest='')
 /*-- PROGRESS-BAR --*/
         if ($this->progressBar && ($dest=='D' || $dest=='I')) {
                 if($name=='') { $name='mpdf.pdf'; }
-                $tempfile = '_tempPDF'.RAND(1,10000);
+                $tempfile = '_tempPDF'.uniqid(rand(1,100000),true);
                 //Save to local file
                 $f=fopen(_MPDF_TEMP_PATH.$tempfile.'.pdf','wb');
                 if(!$f) $this->Error('Unable to create temporary output file: '.$tempfile.'.pdf');
@@ -7451,7 +7467,7 @@ function Output($name='',$dest='')
                                         // don't use length if server using compression
                                         header('Content-Length: '.strlen($this->buffer));
                                 }
-                                header('Content-disposition: attachment; filename="'.$name.'"');
+                                header('Content-disposition: inline; filename="'.$name.'"');
                                 header('Cache-Control: public, must-revalidate, max-age=0'); 
                                 header('Pragma: public');
                                 header('Expires: Sat, 26 Jul 1997 05:00:00 GMT'); 
@@ -7501,7 +7517,7 @@ function Output($name='',$dest='')
                 $interval = 3600;
                 if ($handle = opendir(preg_replace('/\/$/','',_MPDF_TEMP_PATH))) {
                    while (false !== ($file = readdir($handle))) { 
-                        if (!is_dir($file) && ((filemtime(_MPDF_TEMP_PATH.$file)+$interval) < time()) && ($file != "..") && ($file != ".")) { // mPDF 5.4.19
+                        if (!is_dir($file) && ((filemtime(_MPDF_TEMP_PATH.$file)+$interval) < time()) && ($file != "..") && ($file != ".") && (substr($file, 0, 1) !== '.') && ($file !='dummy.txt')) { // mPDF 5.7
                                 unlink(_MPDF_TEMP_PATH.$file); 
                         }
                    }
@@ -7576,7 +7592,7 @@ function _puthtmlheaders() {
                 else { $pntstr = ''; }
                 $html = str_replace($this->aliasNbPgGp,$pntstr,$html ); // {nbpg}
                 $html = str_replace($this->aliasNbPg,$nb,$html );       // {nb}
-                $html = preg_replace('/\{DATE\s+(.*?)\}/e',"date('\\1')",$html );
+                $html = preg_replace_callback('/\{DATE\s+(.*?)\}/', array($this, 'date_callback') ,$html );     // mPDF 5.7
 
                 $this->HTMLheaderPageLinks = array();
                 $this->HTMLheaderPageAnnots = array();
@@ -7602,7 +7618,7 @@ function _puthtmlheaders() {
 
                 // Writes over the page background but behind any other output on page
                 $os = preg_replace('/\\\\/','\\\\\\\\',$os);
-                $this->pages[$n] = preg_replace('/(___HEADER___MARKER'.date('jY').')/', "\n".$os."\n".'\\1', $this->pages[$n]);
+                $this->pages[$n] = preg_replace('/(___HEADER___MARKER'.$this->uniqstr.')/', "\n".$os."\n".'\\1', $this->pages[$n]);
 
                 $lks = $this->HTMLheaderPageLinks; 
                 foreach($lks AS $lk) {
@@ -7659,7 +7675,7 @@ function _puthtmlheaders() {
                 else { $pntstr = ''; }
                 $html = str_replace($this->aliasNbPgGp,$pntstr,$html ); // {nbpg}
                 $html = str_replace($this->aliasNbPg,$nb,$html );       // {nb}
-                $html = preg_replace('/\{DATE\s+(.*?)\}/e',"date('\\1')",$html );
+                $html = preg_replace_callback('/\{DATE\s+(.*?)\}/', array($this, 'date_callback') ,$html );     // mPDF 5.7
 
 
                 $this->HTMLheaderPageLinks = array();
@@ -7694,7 +7710,7 @@ function _puthtmlheaders() {
                 $os .= $this->StopTransform(true)."\n";
                 // Writes over the page background but behind any other output on page
                 $os = preg_replace('/\\\\/','\\\\\\\\',$os);
-                $this->pages[$n] = preg_replace('/(___HEADER___MARKER'.date('jY').')/', "\n".$os."\n".'\\1', $this->pages[$n]);
+                $this->pages[$n] = preg_replace('/(___HEADER___MARKER'.$this->uniqstr.')/', "\n".$os."\n".'\\1', $this->pages[$n]);
 
                 $lks = $this->HTMLheaderPageLinks; 
                 foreach($lks AS $lk) {
@@ -7876,10 +7892,10 @@ function _putpages()
                         $thispage=str_replace($this->aliasNbPgGpHex,$r,$thispage);
 
                 }
-                $thispage = preg_replace('/(\s*___BACKGROUND___PATTERNS'.date('jY').'\s*)/', " ", $thispage);
-                $thispage = preg_replace('/(\s*___HEADER___MARKER'.date('jY').'\s*)/', " ", $thispage);
-                $thispage = preg_replace('/(\s*___PAGE___START'.date('jY').'\s*)/', " ", $thispage);
-                $thispage = preg_replace('/(\s*___TABLE___BACKGROUNDS'.date('jY').'\s*)/', " ", $thispage);
+                $thispage = preg_replace('/(\s*___BACKGROUND___PATTERNS'.$this->uniqstr.'\s*)/', " ", $thispage);
+                $thispage = preg_replace('/(\s*___HEADER___MARKER'.$this->uniqstr.'\s*)/', " ", $thispage);
+                $thispage = preg_replace('/(\s*___PAGE___START'.$this->uniqstr.'\s*)/', " ", $thispage);
+                $thispage = preg_replace('/(\s*___TABLE___BACKGROUNDS'.$this->uniqstr.'\s*)/', " ", $thispage);
 
                 //Page
                 $this->_newobj();
@@ -7928,10 +7944,13 @@ function _putpages()
                 }
 
                 $annotsnum = 0;
+                $embeddedfiles = array();       // mPDF 5.7.2 /EmbeddedFiles
+
                 if (isset($this->PageLinks[$n])) { $annotsnum += count($this->PageLinks[$n]); }
 /*-- ANNOTATIONS --*/
                 if (isset($this->PageAnnots[$n])) { 
                         foreach ($this->PageAnnots[$n] as $k => $pl) {
+                                if (!empty($pl['opt']['file'])) { $embeddedfiles[$annotsnum+1] = true ; }       // mPDF 5.7.2 /EmbeddedFiles
                                 if (!empty($pl['opt']['popup']) || !empty($pl['opt']['file'])) { $annotsnum += 2 ; }
                                 else { $annotsnum++; }
                                 $this->PageAnnots[$n][$k]['pageobj'] = $this->n;
@@ -7952,7 +7971,7 @@ function _putpages()
                 if ($annotsnum || $formsnum) {
                         $s = '/Annots [ ';
                         for($i=0;$i<$annotsnum;$i++) { 
-                                $s .= ($annotid + $i) . ' 0 R ';
+                                if (!isset($embeddedfiles[$i])) { $s .= ($annotid + $i) . ' 0 R '; }    // mPDF 5.7.2 /EmbeddedFiles
                         } 
                         $annotid += $annotsnum;
 /*-- FORMS --*/
@@ -7974,7 +7993,7 @@ function _putpages()
                 $this->_putstream($p);
                 $this->_out('endobj');
         }
-        $this->_putannots($n);
+        $this->_putannots();    // mPDF 5.7.2
 
         //Pages root
         $this->offsets[1]=strlen($this->buffer);
@@ -7991,7 +8010,7 @@ function _putpages()
 }
 
 
-function _putannots($n) {
+function _putannots() { // mPDF 5.7.2
         $filter=($this->compress) ? '/Filter /FlateDecode ' : '';
         $nb=$this->page;
         for($n=1;$n<=$nb;$n++)
@@ -9752,7 +9771,7 @@ function _getImage(&$file, $firsttime=true, $allowvector=true, $orig_srcpath=fal
                         if ($this->PDFA && !$this->PDFAauto) { $this->PDFAXwarnings[] = "JPG image may not use CMYK color space - ".$file." - (Image converted to RGB. NB This will alter the colour profile of the image.)"; }
                         $im = @imagecreatefromstring($data);
                         if ($im) {
-                                $tempfile = _MPDF_TEMP_PATH.'_tempImgPNG'.RAND(1,10000).'.png';
+                                $tempfile = _MPDF_TEMP_PATH.'_tempImgPNG'.md5($file).RAND(1,10000).'.png';
                                 imageinterlace($im, false);
                                 $check = @imagepng($im, $tempfile);
                                 if (!$check) { return $this->_imageError($file, $firsttime, 'Error creating temporary file ('.$tempfile.') whilst using GD library to parse JPG(CMYK) image'); }
@@ -9857,7 +9876,7 @@ function _getImage(&$file, $firsttime=true, $allowvector=true, $orig_srcpath=fal
                         $w = imagesx($im);
                         $h = imagesy($im);
                         if ($im) {
-                           $tempfile = _MPDF_TEMP_PATH.'_tempImgPNG'.RAND(1,10000).'.png';
+                           $tempfile = _MPDF_TEMP_PATH.'_tempImgPNG'.md5($file).RAND(1,10000).'.png';
                            // Alpha channel set
                            if ($pngalpha) {
                                 if ($this->PDFA) { $this->Error("PDFA1-b does not permit images with alpha channel transparency (".$file.")."); }
@@ -9865,24 +9884,18 @@ function _getImage(&$file, $firsttime=true, $allowvector=true, $orig_srcpath=fal
                                 // generate gray scale pallete
                                 for ($c = 0; $c < 256; ++$c) { ImageColorAllocate($imgalpha, $c, $c, $c); }
                                 // extract alpha channel
-                                $gammacorr = 2.2;       // gamma correction
                                 for ($xpx = 0; $xpx < $w; ++$xpx) {
                                         for ($ypx = 0; $ypx < $h; ++$ypx) {
-                                                //$colorindex = imagecolorat($im, $xpx, $ypx);
-                                                //$col = imagecolorsforindex($im, $colorindex);
-                                                //$gamma2 = (pow((((127 - $col['alpha']) * 255 / 127) / 255), $gammacorr) * 255);
                                                 $alpha = (imagecolorat($im, $xpx, $ypx) & 0x7F000000) >> 24;
+                                                // mPDF 5.7.2
                                                 if ($alpha < 127) {
-                                                        if ($alpha==0) { $gamma = 255; }
-                                                        else
-                                                                $gamma = (pow((((127 - $alpha) * 255 / 127) / 255), $gammacorr) * 255);
-                                                        imagesetpixel($imgalpha, $xpx, $ypx, $gamma);
+                                                        imagesetpixel($imgalpha, $xpx, $ypx, (255-($alpha * 2)));
                                                 }
                                         }
                                 }
                                 // create temp alpha file
-                                $tempfile_alpha = _MPDF_TEMP_PATH.'_tempMskPNG'.RAND(1,10000).'.png';
-                                if (!is_writable($tempfile_alpha)) { 
+                                $tempfile_alpha = _MPDF_TEMP_PATH.'_tempMskPNG'.md5($file).RAND(1,10000).'.png';
+                                if (!is_writable(_MPDF_TEMP_PATH)) {    // mPDF 5.7.2
                                         ob_start(); 
                                         $check = @imagepng($imgalpha);
                                         if (!$check) { return $this->_imageError($file, $firsttime, 'Error creating temporary image object whilst using GD library to parse PNG image'); }
@@ -9892,6 +9905,7 @@ function _getImage(&$file, $firsttime=true, $allowvector=true, $orig_srcpath=fal
                                         ob_end_clean();
                                         // extract image without alpha channel
                                         $imgplain = imagecreatetruecolor($w, $h);
+                                        imagealphablending( $imgplain, false ); // mPDF 5.7.2
                                         imagecopy($imgplain, $im, 0, 0, 0, 0, $w, $h);
                                         // create temp image file
                                         $minfo = $this->_getImage($this->_tempimglnk, false);
@@ -9918,6 +9932,7 @@ function _getImage(&$file, $firsttime=true, $allowvector=true, $orig_srcpath=fal
 
                                         // extract image without alpha channel
                                         $imgplain = imagecreatetruecolor($w, $h);
+                                        imagealphablending( $imgplain, false ); // mPDF 5.7.2
                                         imagecopy($imgplain, $im, 0, 0, 0, 0, $w, $h);
 
                                         // create temp image file
@@ -10040,7 +10055,7 @@ function _getImage(&$file, $firsttime=true, $allowvector=true, $orig_srcpath=fal
                 if (isset($gd['GIF Read Support']) && $gd['GIF Read Support']) {
                         $im = @imagecreatefromstring($data);
                         if ($im) {
-                                $tempfile = _MPDF_TEMP_PATH.'_tempImgPNG'.RAND(1,10000).'.png';
+                                $tempfile = _MPDF_TEMP_PATH.'_tempImgPNG'.md5($file).RAND(1,10000).'.png';
                                 imagealphablending($im, false);
                                 imagesavealpha($im, false); 
                                 imageinterlace($im, false);
@@ -10171,7 +10186,7 @@ function _getImage(&$file, $firsttime=true, $allowvector=true, $orig_srcpath=fal
                 if (isset($gd['PNG Support']) && $gd['PNG Support']) {
                         $im = @imagecreatefromstring($data);
                         if (!$im) { return $this->_imageError($file, $firsttime, 'Error parsing image file - image type not recognised, and not supported by GD imagecreate'); }
-                        $tempfile = _MPDF_TEMP_PATH.'_tempImgPNG'.RAND(1,10000).'.png';
+                        $tempfile = _MPDF_TEMP_PATH.'_tempImgPNG'.md5($file).RAND(1,10000).'.png';
                         imagealphablending($im, false);
                         imagesavealpha($im, false); 
                         imageinterlace($im, false);
@@ -10295,10 +10310,10 @@ function _convImage(&$data, $colspace, $targetcs, $w, $h, $dpi, $mask) {
                                         $imgdata .= chr($r).chr($g).chr($b);
                                 }
                                 if ($mask) {
-                                        $col = imagecolorsforindex($im, $rgb);
-                                        $gammacorr = 2.2;       // gamma correction
-                                        $gamma = intval((pow((((127 - $col['alpha']) * 255 / 127) / 255), $gammacorr) * 255));
-                                        $mimgdata .= chr($gamma);
+                                        // mPDF 5.7.2 Gamma correction
+                                        $alpha = ($rgb & 0x7F000000) >> 24;
+                                        if ($alpha < 127) { $mimgdata .= chr(255-($alpha * 2)); }
+                                        else { $mimgdata .= chr(0); }
                                 }
                         }
                 }
@@ -10316,7 +10331,7 @@ function _convImage(&$data, $colspace, $targetcs, $w, $h, $dpi, $mask) {
                         $minfo = array('w'=>$w,'h'=>$h,'cs'=>'DeviceGray','bpc'=>8,'f'=>'FlateDecode','data'=>$mimgdata, 'type'=>'png',
                         'parms'=>'/DecodeParms <</Colors '.$ncols.' /BitsPerComponent 8 /Columns '.$w.'>>');
                         if ($dpi) { $minfo['set-dpi'] = $dpi; }
-                        $tempfile = '_tempImgPNG'.RAND(1,10000).'.png';
+                        $tempfile = '_tempImgPNG'.md5($file).RAND(1,10000).'.png';
                         $imgmask = count($this->images)+1;
                         $minfo['i']=$imgmask ;
                         $this->images[$tempfile] = $minfo;
@@ -10408,7 +10423,7 @@ function file_get_contents_by_socket($url, &$data) {
 
 function _imageTypeFromString(&$data) {
         $type = '';
-        if (substr($data, 6, 4)== 'JFIF' || substr($data, 6, 4)== 'Exif') { 
+        if (substr($data, 6, 4)== 'JFIF' || substr($data, 6, 4)== 'Exif' || substr($data, 0, 2)== chr(255).chr(216)) { // 0xFF 0xD8     // mpDF 5.7.2
                 $type = 'jpeg'; 
         }
         else if (substr($data, 0, 6)== "GIF87a" || substr($data, 0, 6)== "GIF89a") { 
@@ -11117,7 +11132,11 @@ function GetFullPath(&$path,$basepath='') {
         if (!$basepath) { $basepath = $this->basepath; }
         //Fix path value
         $path = str_replace("\\","/",$path); //If on Windows
-        $path = preg_replace('/^\/\//','http://',$path);        // mPDF 5.6.27
+        // mPDF 5.7.2
+        if (substr($path,0,2) == "//") { 
+                $tr = parse_url($basepath);
+                $path = $tr['scheme'].':'.$path;
+        }
         $regexp = '|^./|';      // Inadvertently corrects "./path/etc" and "//www.domain.com/etc"
         $path = preg_replace($regexp,'',$path);
 
@@ -11138,7 +11157,10 @@ function GetFullPath(&$path,$basepath='') {
         else if( strpos($path,":/") === false || strpos($path,":/") > 10) { //It is a Local Link
                 if (substr($path,0,1) == "/") { 
                         $tr = parse_url($basepath);
-                        $root = $tr['scheme'].'://'.$tr['host'];
+                        // mPDF 5.7.2
+                        $root = '';
+                        if (!empty($tr['scheme'])) { $root .= $tr['scheme'].'://'; }
+                        $root .= $tr['host'];
                         $path = $root . $path; 
                 }
                 else { $path = $basepath . $path; }
@@ -11350,7 +11372,7 @@ function Header($content='') {
           if (isset($h[$side][$pos]['content']) && $h[$side][$pos]['content']) {
                 $hd = str_replace('{PAGENO}',$pgno,$h[$side][$pos]['content']);
                 $hd = str_replace($this->aliasNbPgGp,$this->nbpgPrefix.$this->aliasNbPgGp.$this->nbpgSuffix,$hd);
-                $hd = preg_replace('/\{DATE\s+(.*?)\}/e',"date('\\1')",$hd);
+                $hd = preg_replace_callback('/\{DATE\s+(.*?)\}/', array($this, 'date_callback') ,$hd);  // mPDF 5.7
                 if (isset($h[$side][$pos]['font-family']) && $h[$side][$pos]['font-family']) { $hff = $h[$side][$pos]['font-family']; }
                 else { $hff = $this->original_default_font; }
                 if (isset($h[$side][$pos]['font-size']) && $h[$side][$pos]['font-size']) { $hfsz = $h[$side][$pos]['font-size']; }
@@ -11421,10 +11443,24 @@ function Header($content='') {
 
 /*-- TABLES --*/
 function TableHeaderFooter($content='',$tablestartpage='',$tablestartcolumn ='',$horf = 'H',$level, $firstSpread=true, $finalSpread=true) {
-  if(($horf=='H' || $horf=='F') && !empty($content) && !empty($content[0])) {   // mPDF 5.6.61
+  if(($horf=='H' || $horf=='F') && !empty($content)) {  // mPDF 5.7.2
         $table = &$this->table[1][1];
-        // Advance down page by half width of top border
 
+        // mPDF 5.7.2
+        if ($horf=='F') { // Table Footer
+                $firstrow = count($table['cells']) - $table['footernrows'];
+                $lastrow = count($table['cells']) - 1;
+        }
+        else {  // Table Header
+                $firstrow = 0;
+                $lastrow = $table['headernrows'] - 1;
+        }
+        if(empty($content[$firstrow])) {
+                if ($this->debug) { $this->Error("&lt;tfoot&gt; must precede &lt;tbody&gt; in a table"); }
+                else { return; }
+        }
+
+        // Advance down page by half width of top border
         if ($horf=='H') { // Only if header
                 if ($table['borders_separate']) { $adv = $table['border_spacing_V']/2 + $table['border_details']['T']['w'] + $table['padding']['T'];  }
                 else { $adv = $table['max_cell_border_width']['T'] /2 ; }
@@ -11438,14 +11474,6 @@ function TableHeaderFooter($content='',$tablestartpage='',$tablestartcolumn ='',
                 }
         }
 
-   if ($horf=='F') { // Table Footer
-        $firstrow = count($table['cells']) - $table['footernrows'];
-        $lastrow = count($table['cells']) - 1;
-   }
-   else {       // Table Header
-        $firstrow = 0;
-        $lastrow = $table['headernrows'] - 1;
-   }
 
    $topy = $content[$firstrow][0]['y']-$this->y;
 
@@ -12054,7 +12082,7 @@ function _getHtmlHeight($html) {
                 $html = str_replace('{PAGENO}',$this->pagenumPrefix.$this->docPageNum($this->page).$this->pagenumSuffix,$html);
                 $html = str_replace($this->aliasNbPgGp,$this->nbpgPrefix.$this->docPageNumTotal($this->page).$this->nbpgSuffix,$html );
                 $html = str_replace($this->aliasNbPg,$this->page,$html );
-                $html = preg_replace('/\{DATE\s+(.*?)\}/e',"date('\\1')",$html );
+                $html = preg_replace_callback('/\{DATE\s+(.*?)\}/', array($this, 'date_callback') ,$html ); // mPDF 5.7
                 $this->HTMLheaderPageLinks = array();
                 $this->HTMLheaderPageAnnots = array();
                 $this->HTMLheaderPageForms = array();
@@ -12064,6 +12092,10 @@ function _getHtmlHeight($html) {
                 $this->writingHTMLheader = false;
                 $h = ($this->y - $this->margin_header);
                 $this->Reset();
+                // mPDF 5.7.2 - Clear in case Float used in Header/Footer
+                $this->blk[0]['blockContext'] = 0;
+                $this->blk[0]['float_endpos'] = 0;
+
                 $this->pageoutput[$this->page] = array();
                 $this->headerbuffer = '';
                 $this->pageBackgrounds = $savepb;
@@ -12489,7 +12521,7 @@ function Footer() {
           if (isset($h[$side][$pos]['content']) && $h[$side][$pos]['content']) {
                 $hd = str_replace('{PAGENO}',$pgno,$h[$side][$pos]['content']);
                 $hd = str_replace($this->aliasNbPgGp,$this->nbpgPrefix.$this->aliasNbPgGp.$this->nbpgSuffix,$hd);
-                $hd = preg_replace('/\{DATE\s+(.*?)\}/e',"date('\\1')",$hd);
+                $hd = preg_replace_callback('/\{DATE\s+(.*?)\}/', array($this, 'date_callback') ,$hd);  // mPDF 5.7
                 if (isset($h[$side][$pos]['font-family']) && $h[$side][$pos]['font-family']) { $hff = $h[$side][$pos]['font-family']; }
                 else { $hff = $this->original_default_font; }
                 if (isset($h[$side][$pos]['font-size']) && $h[$side][$pos]['font-size']) { $hfsz = $h[$side][$pos]['font-size']; }
@@ -12579,7 +12611,7 @@ function hardHyphenate($word, $maxWidth) {
                 else if ($this->FontFamily!='csymbol' && $this->FontFamily!='czapfdingbats') {
                         $p = strpos($word, "-", $offset);
                 }
-                if ($p !== false) { $poss[] = $p - count($poss); }
+                if ($p !== false) { $poss[] = $p; }     // mPDF 5.7.2
                 else { break; }
                 $offset = $p+1;
         }
@@ -12634,7 +12666,9 @@ function softHyphenate($word, $maxWidth) {
                 else if ($this->FontFamily!='csymbol' && $this->FontFamily!='czapfdingbats') {
                         $p = strpos($word, chr(173), $offset);
                 }
-                if ($p !== false) { $poss[] = $p - count($poss); }
+                // mPDF 5.7.2
+                //if ($p !== false) { $poss[] = $p - count($poss); }
+                if ($p !== false) { $poss[] = $p; }
                 else { break; }
                 $offset = $p+1;
         }
@@ -13049,7 +13083,8 @@ function WriteHTML($html,$sub=0,$init=true,$close=true) {
                                         $cnt += $this->SubstituteCharsMB($a, $i, $e); 
                                 }
                                 if ($this->biDirectional)  {    // *RTL*
-                                        $e = preg_replace("/([".$this->pregRTLchars."]+)/ue", '$this->ArabJoin(stripslashes(\'\\1\'))', $e);    // *RTL*
+                                        // mPDF 5.7+
+                                        $e = preg_replace_callback("/([".$this->pregRTLchars."]+)/u", array($this, 'arabJoinPregCallback'), $e );       // *RTL*
                                 }       // *RTL*
                                 // Font-specific ligature substitution for Indic fonts
                                 if (isset($this->CurrentFont['indic']) && $this->CurrentFont['indic']) $this->ConvertIndic($e); // *INDIC*
@@ -13343,7 +13378,7 @@ function WriteHTML($html,$sub=0,$init=true,$close=true) {
                         if ($old_page != $new_page) {
                                 $s = $this->PrintPageBackgrounds();
                                 // Writes after the marker so not overwritten later by page background etc.
-                                $this->pages[$this->page] = preg_replace('/(___BACKGROUND___PATTERNS'.date('jY').')/', '\\1'."\n".$s."\n", $this->pages[$this->page]);
+                                $this->pages[$this->page] = preg_replace('/(___BACKGROUND___PATTERNS'.$this->uniqstr.')/', '\\1'."\n".$s."\n", $this->pages[$this->page]);
                                 $this->pageBackgrounds = array();
                                 $this->page = $new_page;
                                 $this->ResetMargins();
@@ -14426,7 +14461,7 @@ function ClearFloats($clear, $blklvl=0) {
         if ($old_page != $new_page) {
                 $s = $this->PrintPageBackgrounds();
                 // Writes after the marker so not overwritten later by page background etc.
-                $this->pages[$this->page] = preg_replace('/(___BACKGROUND___PATTERNS'.date('jY').')/', '\\1'."\n".$s."\n", $this->pages[$this->page]);
+                $this->pages[$this->page] = preg_replace('/(___BACKGROUND___PATTERNS'.$this->uniqstr.')/', '\\1'."\n".$s."\n", $this->pages[$this->page]);
                 $this->pageBackgrounds = array();
                 $this->page = $new_page;
         }
@@ -14924,8 +14959,8 @@ function OpenTag($tag,$attr)
                 if (strpos($size,',')) { $size = explode(',',$size); }
         } 
         else { $size = 'D'; }
-        if (isset($attr['POS']) && $attr['POS']) { 
-                $pos = $attr['POS']; 
+        if (isset($attr['POSITION']) && $attr['POSITION']) {    // mPDF 5.7.2
+                $pos = $attr['POSITION']; 
                 if (strpos($pos,',')) { $pos = explode(',',$pos); }
         } 
         else { $pos = 'P'; }
@@ -15273,7 +15308,7 @@ function OpenTag($tag,$attr)
                 $this->meter = new meter();
                 $svg = $this->meter->makeSVG(strtolower($tag), $type, $value, $max, $min, $optimum, $low, $high);
                 //Save to local file
-                $srcpath= _MPDF_TEMP_PATH.'_tempSVG'.RAND(1,10000).'_'.strtolower($tag).'.svg';
+                $srcpath= _MPDF_TEMP_PATH.'_tempSVG'.uniqid(rand(1,100000),true).'_'.strtolower($tag).'.svg';
                 file_put_contents($srcpath, $svg);
                 $orig_srcpath = $srcpath;
                 $this->GetFullPath($srcpath); 
@@ -17111,7 +17146,7 @@ function OpenTag($tag,$attr)
         if ($this->cacheTables) {
                 $this->packTableData = true;    // required for cacheTables
                 $this->simpleTables = false;  // Cannot co-exist with cacheTables
-                $table['cache'] = _MPDF_TEMP_PATH.'_tempTblCache'.RAND(1,1000000).'.dat';
+                $table['cache'] = _MPDF_TEMP_PATH.'_tempTblCache'.uniqid(rand(1,100000),true).'.dat';
                 $fh = fopen($table['cache'] , "wb") or $this->Error("When using cacheTables, you must have read/write access to cache files (".$table['cache'] .")");
                 fwrite($fh, "\x00");
                 fclose($fh);
@@ -18237,10 +18272,7 @@ function OpenTag($tag,$attr)
 
 function _getListStyle($ls) {
         if (stristr($ls,'decimal')) { return '1'; }
-/*  CSS3 list-styles numeric (selected) + I added tamil
-arabic-indic | bengali | devanagari | gujarati | gurmukhi | kannada | malayalam | oriya | persian | telugu | thai | urdu 
-*/
-        else if (preg_match('/(disc|circle|square|arabic-indic|bengali|devanagari|gujarati|gurmukhi|kannada|malayalam|oriya|persian|tamil|telugu|thai|urdu)/i',$ls,$m)) { 
+        else if (preg_match('/(disc|circle|square|arabic-indic|bengali|devanagari|gujarati|gurmukhi|kannada|malayalam|oriya|persian|tamil|telugu|thai|urdu|cambodian|khmer|lao)/i',$ls,$m)) { 
                 return strtolower(trim($m[1])); 
         }
         else if (stristr($ls,'lower-roman')) { return 'i'; }
@@ -18470,7 +18502,7 @@ function CloseTag($tag)
                 if ($old_page != $new_page) {
                         $s = $this->PrintPageBackgrounds();
                         // Writes after the marker so not overwritten later by page background etc.
-                        $this->pages[$this->page] = preg_replace('/(___BACKGROUND___PATTERNS'.date('jY').')/', '\\1'."\n".$s."\n", $this->pages[$this->page]);
+                        $this->pages[$this->page] = preg_replace('/(___BACKGROUND___PATTERNS'.$this->uniqstr.')/', '\\1'."\n".$s."\n", $this->pages[$this->page]);
                         $this->pageBackgrounds = array();
                         $this->page = $new_page;
                         $this->ResetMargins();
@@ -18529,7 +18561,7 @@ function CloseTag($tag)
                 // If width not set, here would need to adjust and output buffer
                 $s = $this->PrintPageBackgrounds();
                 // Writes after the marker so not overwritten later by page background etc.
-                $this->pages[$this->page] = preg_replace('/(___BACKGROUND___PATTERNS'.date('jY').')/', '\\1'."\n".$s."\n", $this->pages[$this->page]);
+                $this->pages[$this->page] = preg_replace('/(___BACKGROUND___PATTERNS'.$this->uniqstr.')/', '\\1'."\n".$s."\n", $this->pages[$this->page]);
                 $this->pageBackgrounds = array();
                 $this->Reset();
                 $this->pageoutput[$this->page] = array();
@@ -18561,7 +18593,7 @@ function CloseTag($tag)
                 // If width not set, here would need to adjust and output buffer
                 $s = $this->PrintPageBackgrounds();
                 // Writes after the marker so not overwritten later by page background etc.
-                $this->pages[$this->page] = preg_replace('/(___BACKGROUND___PATTERNS'.date('jY').')/', '\\1'."\n".$s."\n", $this->pages[$this->page]);
+                $this->pages[$this->page] = preg_replace('/(___BACKGROUND___PATTERNS'.$this->uniqstr.')/', '\\1'."\n".$s."\n", $this->pages[$this->page]);
                 $this->pageBackgrounds = array();
                 $this->Reset();
                 $this->pageoutput[$this->page] = array();
@@ -19834,6 +19866,19 @@ arabic-indic | bengali | cambodian | devanagari | gujarati | gurmukhi | kannada
                   $list_item_marker = $rnum . $this->list_number_suffix; 
                 $blt_width = $this->GetStringWidth(str_repeat($this->dec2other(5, $cp),strlen($maxnum)).$this->list_number_suffix);
                   break;
+          case 'khmer':
+          case 'cambodian':
+                  $cp = 0x17E0;
+                  $rnum = $this->dec2other($num, $cp);
+                  $list_item_marker = $rnum . $this->list_number_suffix; 
+                $blt_width = $this->GetStringWidth(str_repeat($this->dec2other(3, $cp),strlen($maxnum)).$this->list_number_suffix);
+                  break;
+          case 'lao':
+                  $cp = 0x0ED0;
+                  $rnum = $this->dec2other($num, $cp);
+                  $list_item_marker = $rnum . $this->list_number_suffix; 
+                $blt_width = $this->GetStringWidth(str_repeat($this->dec2other(6, $cp),strlen($maxnum)).$this->list_number_suffix);
+                  break;
             default:
                   if ($this->listDir == 'rtl') { $list_item_marker = $this->list_number_suffix . $num; }
                   else { $list_item_marker = $num . $this->list_number_suffix; }
@@ -20643,10 +20688,10 @@ function _setBorderLine($b, $k=1) {
         $this->SetLineWidth($b['w']/$k);
         $this->SetDColor($b['c']);
         if ($b['c'][0]==5) {    // RGBa
-                $this->SetAlpha($b['c'][4], 'Normal', false, 'S')."\n";
+                $this->SetAlpha(ord($b['c'][4])/100, 'Normal', false, 'S')."\n";        // mPDF 5.7.2
         }
         else if ($b['c'][0]==6) {       // CMYKa
-                $this->SetAlpha($b['c'][5], 'Normal', false, 'S')."\n";
+                $this->SetAlpha(ord($b['c'][5])/100, 'Normal', false, 'S')."\n";        // mPDF 5.7.2
         }
 }
 
@@ -23767,7 +23812,7 @@ function _tableColumnWidth(&$table,$firstpass=false){
                         }
                         else {
                                 $wi = $c['miw'] - $wis;
-                                foreach ($list as $k) { $wc[$k]['miw'] += ($wc[$k]['miw']/$wisa)*$wi; }
+                                foreach ($list as $k) { if (!isset($wc[$k]['w']) || !$wc[$k]['w']) $wc[$k]['miw'] += ($wc[$k]['miw']/$wisa)*$wi; }      // mPDF 5.7.2
                         }
                 }
                 if ($c['maw'] > $was) {
@@ -25813,7 +25858,7 @@ function _tableWrite(&$table, $split=false, $startrow=0, $startcol=0, $splitpg=0
           }
         }
 
-        if ($level==1) { $this->_out('___TABLE___BACKGROUNDS'.date('jY')); }
+        if ($level==1) { $this->_out('___TABLE___BACKGROUNDS'.$this->uniqstr); }
         $tableheaderadj = 0;
         $tablefooteradj = 0;
 
@@ -26076,12 +26121,12 @@ function _tableWrite(&$table, $split=false, $startrow=0, $startcol=0, $splitpg=0
                                                 if ($this->tableBackgrounds) {
                                                    $s = $this->PrintTableBackgrounds();
                                                    if ($this->bufferoutput) {
-                                                        $this->headerbuffer = preg_replace('/(___TABLE___BACKGROUNDS'.date('jY').')/', '\\1'."\n".$s."\n", $this->headerbuffer);
-                                                        $this->headerbuffer = preg_replace('/(___TABLE___BACKGROUNDS'.date('jY').')/', " ", $this->headerbuffer );
+                                                        $this->headerbuffer = preg_replace('/(___TABLE___BACKGROUNDS'.$this->uniqstr.')/', '\\1'."\n".$s."\n", $this->headerbuffer);
+                                                        $this->headerbuffer = preg_replace('/(___TABLE___BACKGROUNDS'.$this->uniqstr.')/', " ", $this->headerbuffer );
                                                    }
                                                    else {
-                                                        $this->pages[$this->page] = preg_replace('/(___TABLE___BACKGROUNDS'.date('jY').')/', '\\1'."\n".$s."\n", $this->pages[$this->page]);
-                                                        $this->pages[$this->page] = preg_replace('/(___TABLE___BACKGROUNDS'.date('jY').')/', " ", $this->pages[$this->page]);
+                                                        $this->pages[$this->page] = preg_replace('/(___TABLE___BACKGROUNDS'.$this->uniqstr.')/', '\\1'."\n".$s."\n", $this->pages[$this->page]);
+                                                        $this->pages[$this->page] = preg_replace('/(___TABLE___BACKGROUNDS'.$this->uniqstr.')/', " ", $this->pages[$this->page]);
                                                    }
                                                    $this->tableBackgrounds = array();
                                                 }
@@ -26103,7 +26148,7 @@ function _tableWrite(&$table, $split=false, $startrow=0, $startcol=0, $splitpg=0
 
                                                 $this->AddPage($this->CurOrientation);
 
-                                                $this->_out('___TABLE___BACKGROUNDS'.date('jY'));
+                                                $this->_out('___TABLE___BACKGROUNDS'.$this->uniqstr);
 
 
                                                 if ($this->tableClipPath ) { $this->_out($this->tableClipPath); }
@@ -26972,16 +27017,16 @@ function _tableWrite(&$table, $split=false, $startrow=0, $startcol=0, $splitpg=0
         if ($this->tableBackgrounds && $level == 1) {
            $s = $this->PrintTableBackgrounds();
            if ($this->table_rotate && !$this->processingHeader && !$this->processingFooter) {
-                $this->tablebuffer = preg_replace('/(___TABLE___BACKGROUNDS'.date('jY').')/', '\\1'."\n".$s."\n", $this->tablebuffer);
-                if ($level == 1) { $this->tablebuffer = preg_replace('/(___TABLE___BACKGROUNDS'.date('jY').')/', " ", $this->tablebuffer); }
+                $this->tablebuffer = preg_replace('/(___TABLE___BACKGROUNDS'.$this->uniqstr.')/', '\\1'."\n".$s."\n", $this->tablebuffer);
+                if ($level == 1) { $this->tablebuffer = preg_replace('/(___TABLE___BACKGROUNDS'.$this->uniqstr.')/', " ", $this->tablebuffer); }
            }
            else if ($this->bufferoutput) {
-                $this->headerbuffer = preg_replace('/(___TABLE___BACKGROUNDS'.date('jY').')/', '\\1'."\n".$s."\n", $this->headerbuffer);
-                if ($level == 1) { $this->headerbuffer = preg_replace('/(___TABLE___BACKGROUNDS'.date('jY').')/', " ", $this->headerbuffer ); }
+                $this->headerbuffer = preg_replace('/(___TABLE___BACKGROUNDS'.$this->uniqstr.')/', '\\1'."\n".$s."\n", $this->headerbuffer);
+                if ($level == 1) { $this->headerbuffer = preg_replace('/(___TABLE___BACKGROUNDS'.$this->uniqstr.')/', " ", $this->headerbuffer ); }
            }
            else {
-                $this->pages[$this->page] = preg_replace('/(___TABLE___BACKGROUNDS'.date('jY').')/', '\\1'."\n".$s."\n", $this->pages[$this->page]);
-                if ($level == 1) { $this->pages[$this->page] = preg_replace('/(___TABLE___BACKGROUNDS'.date('jY').')/', " ", $this->pages[$this->page]); }
+                $this->pages[$this->page] = preg_replace('/(___TABLE___BACKGROUNDS'.$this->uniqstr.')/', '\\1'."\n".$s."\n", $this->pages[$this->page]);
+                if ($level == 1) { $this->pages[$this->page] = preg_replace('/(___TABLE___BACKGROUNDS'.$this->uniqstr.')/', " ", $this->pages[$this->page]); }
            }
            $this->tableBackgrounds = array();
         }
@@ -28108,14 +28153,9 @@ function TOCpagebreak($tocfont='', $tocfontsize='', $tocindent='', $TOCusePaging
 }
 
 function TOC_Entry($txt, $level=0, $toc_id=0) {
-                $txt = $this->purify_utf8_text($txt);
-                if ($this->text_input_as_HTML) {
-                        $txt = $this->all_entities_to_utf8($txt);
-                }
-                if ($this->usingCoreFont) { $txt = mb_convert_encoding($txt,$this->mb_enc,'UTF-8'); }
+                // mPDF 5.7.2
                 if ($this->ColActive) { $ily = $this->y0; } else { $ily = $this->y; }   // use top of columns
 
-                // mPDF 5.6.19  mPDF 5.6.25     mPDF 5.6.37
                 if (!class_exists('tocontents', false)) { include(_MPDF_PATH.'classes/tocontents.php'); }
                 if (empty($this->tocontents)) { $this->tocontents = new tocontents($this); }
                 $linkn = $this->AddLink();
@@ -28130,7 +28170,7 @@ function TOC_Entry($txt, $level=0, $toc_id=0) {
 
 /*-- RTL --*/
                 if ($this->biDirectional)  {
-                        $txt = preg_replace("/([".$this->pregRTLchars."]+)/ue", '$this->ArabJoin(stripslashes(\'\\1\'))', $txt );
+                        $txt = preg_replace_callback("/([".$this->pregRTLchars."]+)/u", array($this, 'arabJoinPregCallback'), $txt );   // mPDF 5.7+
                 }
 /*-- END RTL --*/
                 if (strtoupper($toc_id)=='ALL') { $toc_id = '_mpdf_all'; }
@@ -28556,7 +28596,7 @@ function IndexEntry($txt, $xref='') {
                 if ($this->keep_block_together) {
                         if (isset($this->ktReference[$i]['t']) && $this->ktReference[$i]['t']==$txt){
                                 $Present=1;
-                                if (!in_array($this->page,$this->ktReference[$i]['p'])) {
+                                if ($this->page != $this->ktReference[$i]['op']) {      // mPDF 5.7.2
                                         $this->ktReference[$i]['op'] = $this->page;
                                 }
                         }
@@ -28565,7 +28605,7 @@ function IndexEntry($txt, $xref='') {
                 else if ($this->table_rotate) {
                         if (isset($this->tbrot_Reference[$i]['t']) && $this->tbrot_Reference[$i]['t']==$txt){
                                 $Present=1;
-                                if (!in_array($this->page,$this->tbrot_Reference[$i]['p'])) {
+                                if ($this->page != $this->tbrot_Reference[$i]['op']) {  // mPDF 5.7.2
                                         $this->tbrot_Reference[$i]['op'] = $this->page;
                                 }
                         }
@@ -28573,7 +28613,7 @@ function IndexEntry($txt, $xref='') {
                 else if ($this->kwt) {
                         if (isset($this->kwt_Reference[$i]['t']) && $this->kwt_Reference[$i]['t']==$txt){
                                 $Present=1;
-                                if (!in_array($this->page,$this->kwt_Reference[$i]['p'])) {
+                                if ($this->page != $this->kwt_Reference[$i]['op']) {    // mPDF 5.7.2
                                         $this->kwt_Reference[$i]['op'] = $this->page;
                                 }
                         }
@@ -28583,7 +28623,7 @@ function IndexEntry($txt, $xref='') {
                 else if ($this->ColActive) {
                         if (isset($this->col_Reference[$i]['t']) && $this->col_Reference[$i]['t']==$txt){
                                 $Present=1;
-                                if (!in_array($this->page,$this->col_Reference[$i]['p'])) {
+                                if ($this->page != $this->col_Reference[$i]['op']) {    // mPDF 5.7.2
                                         $this->col_Reference[$i]['op'] = $this->page;
                                 }
                         }
@@ -28719,7 +28759,7 @@ function CreateIndex($NbCol=1, $reffontsize='', $linespacing='', $offset=3, $use
 /*-- RTL --*/
                         // Change Arabic + Persian. to Presentation Forms
                         if ($this->biDirectional)  {
-                                $this->Reference[$i]['t'] = preg_replace("/([".$this->pregRTLchars."]+)/ue", '$this->ArabJoin(stripslashes(\'\\1\'))', $this->Reference[$i]['t'] );
+                                $this->Reference[$i]['t'] = preg_replace_callback("/([".$this->pregRTLchars."]+)/u", array($this, 'arabJoinPregCallback'), $this->Reference[$i]['t'] ); // mPDF 5.7+
                         }
 /*-- END RTL --*/
 
@@ -29002,7 +29042,7 @@ function NewColumn() {
 
 function printcolumnbuffer() {
    // Columns ended (but page not ended) -> try to match all columns - unless disabled by using a custom column-break
-   if (!$this->ColActive && $this->ColumnAdjust && !$this->keepColumns) {
+   if (!$this->ColActive && $this->ColumnAdjust && !$this->keepColumns) {       // mPDF 5.7.2
         // Calculate adjustment to add to each column to calculate rel_y value
         $this->ColDetails[0]['add_y'] = 0;
         $last_col = 0;
@@ -29106,12 +29146,14 @@ function printcolumnbuffer() {
                 $yadj = ($s['rel_y'] - $s['y']) - ($last_col_bottom)+$this->y0;
                 // callback function
                 $t = $s['s'];
-                $t = preg_replace('/BT (\d+\.\d\d+) (\d+\.\d\d+) Td/e',"\$this->columnAdjustAdd('Td',_MPDFK,$xadj,$yadj,'\\1','\\2')",$t);
-                $t = preg_replace('/(\d+\.\d\d+) (\d+\.\d\d+) (\d+\.\d\d+) ([\-]{0,1}\d+\.\d\d+) re/e',"\$this->columnAdjustAdd('re',_MPDFK,$xadj,$yadj,'\\1','\\2','\\3','\\4')",$t);
-                $t = preg_replace('/(\d+\.\d\d+) (\d+\.\d\d+) l/e',"\$this->columnAdjustAdd('l',_MPDFK,$xadj,$yadj,'\\1','\\2')",$t);
-                $t = preg_replace('/q (\d+\.\d\d+) 0 0 (\d+\.\d\d+) (\d+\.\d\d+) (\d+\.\d\d+) cm \/(I|FO)/e',"\$this->columnAdjustAdd('img',_MPDFK,$xadj,$yadj,'\\1','\\2','\\3','\\4','\\5')",$t); 
-                $t = preg_replace('/(\d+\.\d\d+) (\d+\.\d\d+) m/e',"\$this->columnAdjustAdd('draw',_MPDFK,$xadj,$yadj,'\\1','\\2')",$t);
-                $t = preg_replace('/(\d+\.\d\d+) (\d+\.\d\d+) (\d+\.\d\d+) (\d+\.\d\d+) (\d+\.\d\d+) (\d+\.\d\d+) c/e',"\$this->columnAdjustAdd('bezier',_MPDFK,$xadj,$yadj,'\\1','\\2','\\3','\\4','\\5','\\6')",$t);
+
+                // mPDF 5.7+
+                $t = $this->columnAdjustPregReplace('Td', $xadj, $yadj, '/BT (\d+\.\d\d+) (\d+\.\d\d+) Td/', $t);
+                $t = $this->columnAdjustPregReplace('re', $xadj, $yadj, '/(\d+\.\d\d+) (\d+\.\d\d+) (\d+\.\d\d+) ([\-]{0,1}\d+\.\d\d+) re/', $t);
+                $t = $this->columnAdjustPregReplace('l', $xadj, $yadj, '/(\d+\.\d\d+) (\d+\.\d\d+) l/', $t);
+                $t = $this->columnAdjustPregReplace('img', $xadj, $yadj, '/q (\d+\.\d\d+) 0 0 (\d+\.\d\d+) (\d+\.\d\d+) (\d+\.\d\d+) cm \/(I|FO)/', $t);
+                $t = $this->columnAdjustPregReplace('draw', $xadj, $yadj, '/(\d+\.\d\d+) (\d+\.\d\d+) m/', $t);
+                $t = $this->columnAdjustPregReplace('bezier',$xadj, $yadj, '/(\d+\.\d\d+) (\d+\.\d\d+) (\d+\.\d\d+) (\d+\.\d\d+) (\d+\.\d\d+) (\d+\.\d\d+) c/', $t);
 
                 $this->columnbuffer[$key]['s'] = $t;
                 $this->columnbuffer[$key]['newcol'] = $newcolumn;
@@ -29466,6 +29508,16 @@ function printcolumnbuffer() {
    $this->breakpoints = array();
 }
 
+// mPDF 5.7+
+function columnAdjustPregReplace($type, $xadj, $yadj, $pattern, $subject) {
+        preg_match($pattern, $subject, $matches);
+        if (!isset($matches[3])) { $matches[3] = 0; }
+        if (!isset($matches[4])) { $matches[4] = 0; }
+        if (!isset($matches[5])) { $matches[5] = 0; }
+        if (!isset($matches[6])) { $matches[6] = 0; }
+        return str_replace($matches[0], $this->columnAdjustAdd($type, _MPDFK, $xadj, $yadj, $matches[1], $matches[2], $matches[3], $matches[4], $matches[5], $matches[6]), $subject);
+}
+
 /*-- END COLUMNS --*/
 
 
@@ -30127,6 +30179,11 @@ function reverse_letters($str) {
         return $this->mb_strrev($str, $this->mb_enc); 
 }
 
+// mPDF 5.7+
+function reverse_letters_preg_callback($matches) {
+        return $this->reverse_letters($matches[1]);
+}
+
 function magic_reverse_dir(&$chunk, $join=true, $dir) { 
    if ($this->usingCoreFont) { return 0; }
    if ($this->biDirectional)  {
@@ -30136,7 +30193,7 @@ function magic_reverse_dir(&$chunk, $join=true, $dir) {
 
         // Change Arabic + Persian. to Presentation Forms
         if ($join) {
-                $chunk = preg_replace("/([".$pregRTLchars."]+)/ue", '$this->ArabJoin(stripslashes(\'\\1\'))', $chunk );
+                $chunk = preg_replace_callback("/([".$pregRTLchars."]+)/u", array($this, 'arabJoinPregCallback'), $chunk );     // mPDF 5.7+
         }
         $contains_rtl = false;
         $all_rtl = true;
@@ -30196,7 +30253,7 @@ function magic_reverse_dir(&$chunk, $join=true, $dir) {
                                                 }
                                                 else { 
                                                         // Reverse numerals only to RTL
-                                                        $sbit = preg_replace("/([\x{0660}-\x{066C}0-9]+[\x{0660}-\x{066C}0-9\.,:\/]*[\x{0660}-\x{066C}0-9]+)/ue", '$this->reverse_letters(\'\\1\')', $sbit ); // mPDF 5.6.32 // mPDF 5.6.46
+                                                        $sbit = preg_replace_callback("/([\x{0660}-\x{066C}0-9]+[\x{0660}-\x{066C}0-9\.,:\/]*[\x{0660}-\x{066C}0-9]+)/u", array($this, 'reverse_letters_preg_callback'), $sbit );       // mPDF 5.7+
                                                         $sbits[$sbitkey] = $sbit; 
                                                 }
                                         }
@@ -30208,7 +30265,7 @@ function magic_reverse_dir(&$chunk, $join=true, $dir) {
                                 }
                                 else { 
                                         // Reverse numerals only to RTL
-                                        $bit = preg_replace("/([\x{0660}-\x{066C}0-9]+[\x{0660}-\x{066C}0-9\.,:\/]*[\x{0660}-\x{066C}0-9]+)/ue", '$this->reverse_letters(\'\\1\')', $bit );     // mPDF 5.6.32 // mPDF 5.6.46
+                                        $bit = preg_replace_callback("/([\x{0660}-\x{066C}0-9]+[\x{0660}-\x{066C}0-9\.,:\/]*[\x{0660}-\x{066C}0-9]+)/u", array($this, 'reverse_letters_preg_callback'), $bit ); // mPDF 5.7+
                                         $bits[$bitkey] = $bit; 
                                 }
                         }
@@ -30219,7 +30276,7 @@ function magic_reverse_dir(&$chunk, $join=true, $dir) {
                 $contains_rtl = true;
 
                 // Un-Reverse numerals back to ltr
-                $chunk = preg_replace("/([\x{0660}-\x{066C}0-9]+[\x{0660}-\x{066C}0-9\.,:\/]*[\x{0660}-\x{066C}0-9]+)/ue", '$this->reverse_letters(\'\\1\')', $chunk ); // mPDF 5.6.13 // mPDF 5.6.32 // mPDF 5.6.46
+                $chunk = preg_replace_callback("/([\x{0660}-\x{066C}0-9]+[\x{0660}-\x{066C}0-9\.,:\/]*[\x{0660}-\x{066C}0-9]+)/u", array($this, 'reverse_letters_preg_callback'), $chunk );     // mPDF 5.7+
                 if ($dir == 'rtl') {
                         if ($endSpace) { $chunk = ' '.$chunk; }
                         if ($initSpace) { $chunk .= ' '; }
@@ -31193,7 +31250,7 @@ function AutoFont($html) {
 
 /*-- CJK-FONTS --*/
                 if ($this->autoFontGroups & AUTOFONT_CJK) {
-                        $e = preg_replace("/([".$this->pregCJKchars.$extra."]*[".$this->pregCJKchars."][".$this->pregCJKchars.$extra."]*)/ue", '$this->replaceCJK(stripslashes(\'\\1\'))', $e);
+                        $e = preg_replace_callback("/([".$this->pregCJKchars .$extra."]*[".$this->pregCJKchars ."][".$this->pregCJKchars .$extra."]*)/u", array($this, 'replaceCJKPregCallback'), $e ); // mPDF 5.7+
                 }
 /*-- END CJK-FONTS --*/
 
@@ -31202,7 +31259,7 @@ function AutoFont($html) {
                         // HEBREW
                         $e = preg_replace("/([".$this->pregHEBchars .$extra."]*[".$this->pregHEBchars ."][".$this->pregHEBchars .$extra."]*)/u", "\xef\xbf\xb0span lang=\"he\"\xef\xbf\xb1\\1\xef\xbf\xb0/span\xef\xbf\xb1", $e); 
                         // All Arabic
-                        $e = preg_replace("/([".$this->pregARABICchars .$extra."]*[".$this->pregARABICchars ."][".$this->pregARABICchars .$extra."]*)/ue", '$this->replaceArabic(stripslashes(\'\\1\'))', $e);
+                        $e = preg_replace_callback("/([".$this->pregARABICchars .$extra."]*[".$this->pregARABICchars ."][".$this->pregARABICchars .$extra."]*)/u", array($this, 'replaceArabicPregCallback'), $e );     // mPDF 5.7+
                 }
 /*-- END RTL --*/
 
@@ -31279,6 +31336,11 @@ function replaceCJK($str) {
         }
         return $str;
 }
+
+// mPDF 5.7+
+function replaceCJKPregCallback($matches) {
+        return $this->replaceCJK(stripslashes($matches[1]));
+}
 /*-- END CJK-FONTS --*/
 
 /*-- RTL --*/
@@ -31318,6 +31380,11 @@ function replaceArabic($str) {
         return $str;
 }
 
+// mPDF 5.7+
+function replaceArabicPregCallback($matches) {
+        return $this->replaceArabic(stripslashes($matches[1]));
+}
+
 // ARABIC ===========================
 // mPDF 5.4.08
 function InitArabic() {
@@ -31616,6 +31683,11 @@ function ArabJoin($str) {
         return $s;
 }
 
+// mPDF 5.7+
+function arabJoinPregCallback($matches) {
+        return $this->ArabJoin(stripslashes($matches[1]));
+}
+
 // mPDF 5.4.08
 function get_arab_glyphs($char, $type) {
         if ($type>0 && isset($this->arabGlyphs[$char])) {
@@ -32061,7 +32133,7 @@ function AdjustHTML($html, $tabSpaces=8) {
         preg_match_all("/(<svg.*?<\/svg>)/si", $html, $svgi);
         if (count($svgi[0])) { 
                 for($i=0;$i<count($svgi[0]);$i++) {
-                        $file = _MPDF_TEMP_PATH.'_tempSVG'.RAND(1,10000).'_'.$i.'.svg';
+                        $file = _MPDF_TEMP_PATH.'_tempSVG'.uniqid(rand(1,100000),true).'_'.$i.'.svg';
                         //Save to local file
                         file_put_contents($file, $svgi[0][$i]);
                         $html = str_replace($svgi[0][$i], '<img src="'.$file.'" />', $html);    // mPDF 5.5.18
@@ -32137,12 +32209,14 @@ function AdjustHTML($html, $tabSpaces=8) {
         $iterator = 0;
         while($thereispre) //Recover <pre attributes>content</pre>
         {
-                $temp[2][$iterator] = preg_replace("/^([^\n\t]*?)\t/me", "stripslashes('\\1') . str_repeat(' ',  ( $tabSpaces - (mb_strlen(stripslashes('\\1')) % $tabSpaces))  )",$temp[2][$iterator]);
+                $temp[2][$iterator] = preg_replace('/<([^a-zA-Z_:])/','&lt;\\1',$temp[2][$iterator]);   // mPDF 5.7.2
+                $temp[2][$iterator] = preg_replace_callback("/^([^\n\t]*?)\t/m", array($this, 'tabs2spaces_callback'), $temp[2][$iterator]);    // mPDF 5.7+
                 $temp[2][$iterator] = preg_replace('/\t/',str_repeat(" ",$tabSpaces),$temp[2][$iterator]);
 
                 $temp[2][$iterator] = preg_replace('/\n/',"<br />",$temp[2][$iterator]);
                 $temp[2][$iterator] = str_replace('\\',"\\\\",$temp[2][$iterator]);
-                $html = preg_replace('#<pre(.*?)>(.*?)</pre>#si','<erp'.$temp[1][$iterator].'>'.$temp[2][$iterator].'</erp>',$html,1);
+                //$html = preg_replace('#<pre(.*?)>(.*?)</pre>#si','<erp'.$temp[1][$iterator].'>'.$temp[2][$iterator].'</erp>',$html,1);
+                $html = preg_replace('#<pre(.*?)>(.*?)</pre>#si','<erp'.$temp[1][$iterator].'>'.str_replace('$','\$',$temp[2][$iterator]).'</erp>',$html,1);    // mPDF 5.7+
                 $thereispre--;
                 $iterator++;
         }
@@ -32170,6 +32244,14 @@ function AdjustHTML($html, $tabSpaces=8) {
 
         return $html;
 }
+// mPDF 5.7+
+function tabs2spaces_callback($matches) {
+        return (stripslashes($matches[1]) . str_repeat(' ', $this->tabSpaces - (mb_strlen(stripslashes($matches[1])) % $this->tabSpaces)));
+}
+// mPDF 5.7+
+function date_callback($matches) {
+        return date($matches[1]);
+}
 
 /*-- LISTS --*/
 function dec2other($num, $cp) {