print_pdf/print_pdf.pages.inc

   1 <?php
   2 // $Id$
   3
   4 /**
   5  * @file
   6  * Generates the PDF versions of the pages
   7  *
   8  * This file is included by the print_pdf module and includes the
   9  * functions that interface with the PDF generation packages.
  10  *
  11  * @ingroup print
  12  */
  13
  14 require_once(DRUPAL_ROOT . '/' . drupal_get_path('module', 'print') . '/print.pages.inc');
  15
  16 /**
  17  * Generate a PDF version of the printer-friendly page
  18  *
  19  * @see print_controller()
  20  * @see _print_get_template()
  21  * @see _print_pdf_dompdf()
  22  * @see _print_pdf_tcpdf()
  23  */
  24 function print_pdf_controller() {
  25   global $base_url, $language;
  26
  27   // Disable caching for generated PDFs, as Drupal doesn't ouput the proper headers from the cache
  28   $GLOBALS['conf']['cache'] = FALSE;
  29
  30   $args = func_get_args();
  31   $path = implode('/', $args);
  32   $cid = isset($_GET['comment']) ? (int)$_GET['comment'] : NULL;
  33
  34   $print_pdf_pdf_tool = variable_get('print_pdf_pdf_tool', PRINT_PDF_PDF_TOOL_DEFAULT);
  35
  36   $print = print_controller($path, $cid, PRINT_PDF_FORMAT);
  37   if ($print === FALSE) {
  38     return;
  39   }
  40
  41   // Img elements must be set to absolute
  42   $pattern = '!<(img\s[^>]*?)>!is';
  43   $print['content'] = preg_replace_callback($pattern, '_print_rewrite_urls', $print['content']);
  44   $print['logo'] = preg_replace_callback($pattern, '_print_rewrite_urls', $print['logo']);
  45   $print['footer_message'] = preg_replace_callback($pattern, '_print_rewrite_urls', $print['footer_message']);
  46   // And converted from private to public paths
  47   $file_downloads = variable_get('file_downloads', FILE_DOWNLOADS_PUBLIC);
  48   if ($file_downloads == FILE_DOWNLOADS_PRIVATE) {
  49     switch (variable_get('language_negotiation', LANGUAGE_NEGOTIATION_NONE)) {
  50       case LANGUAGE_NEGOTIATION_PATH_DEFAULT:
  51       case LANGUAGE_NEGOTIATION_PATH:
  52         $lang = $language->language;
  53         break;
  54       default:
  55         $lang = '';
  56         break;
  57     }
  58     $pattern = "!(<img\s[^>]*?src\s*?=\s*?['\"]?)${base_url}/(?:(?:index.php)?\?q=)?(?:${lang}/)?system/files(/[^>]*?>)!is";
  59     $replacement = '$1file://' . realpath(file_directory_path()) . '$2';
  60     $print['content'] = preg_replace($pattern, $replacement, $print['content']);
  61     $print['logo'] = preg_replace($pattern, $replacement, $print['logo']);
  62     $print['footer_message'] = preg_replace($pattern, $replacement, $print['footer_message']);
  63   }
  64   // Send to printer option causes problems with PDF
  65   $print['sendtoprinter'] = '';
  66
  67   $node = $print['node'];
  68   ob_start();
  69   include_once(DRUPAL_ROOT . '/' . _print_get_template(PRINT_PDF_FORMAT, $print['type']));
  70   $html = ob_get_contents();
  71   ob_end_clean();
  72
  73   // Convert the a href elements, to make sure no relative links remain
  74   $pattern = '!<(a\s[^>]*?)>!is';
  75   $html = preg_replace_callback($pattern, '_print_rewrite_urls', $html);
  76   // And make anchor links relative again, to permit in-PDF navigation
  77   $html = preg_replace("!${base_url}/" . PRINTPDF_PATH . "/.*?%2523!", '#', $html);
  78
  79   $pdf_filename = variable_get('print_pdf_filename', PRINT_PDF_FILENAME_DEFAULT);
  80   if (function_exists('token_replace') && !empty($pdf_filename)) {
  81     $pdf_filename = token_replace($pdf_filename, 'node', $node) . '.pdf';
  82   }
  83   else {
  84     $pdf_filename = str_replace('/', '_', $path) . '.pdf';
  85   }
  86   if (basename($print_pdf_pdf_tool) == 'dompdf_config.inc.php') {
  87     _print_pdf_dompdf($print, $html, $pdf_filename);
  88   }
  89   elseif (basename($print_pdf_pdf_tool) == 'tcpdf.php') {
  90     _print_pdf_tcpdf($print, $html, $pdf_filename);
  91   }
  92   elseif (substr(basename($print_pdf_pdf_tool, '.exe'), 0, 11) == 'wkhtmltopdf') {
  93     _print_pdf_wkhtmltopdf($print, $html, $pdf_filename);
  94   }
  95   else {
  96     return drupal_not_found();
  97   }
  98
  99   $nodepath = (isset($node->path)) ? drupal_get_normal_path($node->path) : 'node/' . $path;
 100   db_merge('print_pdf_page_counter')
 101     ->key(array('path' => $nodepath))
 102     ->fields(array(
 103         'totalcount' => 1,
 104         'timestamp' => REQUEST_TIME,
 105     ))
 106     ->expression('totalcount', 'totalcount + :inc', array(':inc' => 1))
 107     ->execute();
 108 }
 109
 110 /**
 111  * Generate the PDF file using the dompdf library
 112  *
 113  * @param $print
 114  *   array containing the configured data
 115  * @param $html
 116  *   contents of the post-processed template already with the node data
 117  * @param $filename
 118  *   name of the PDF file to be generated
 119  * @see print_pdf_controller()
 120  */
 121 function _print_pdf_dompdf($print, $html, $filename) {
 122   $print_pdf_pdf_tool = variable_get('print_pdf_pdf_tool', PRINT_PDF_PDF_TOOL_DEFAULT);
 123   $print_pdf_paper_size = variable_get('print_pdf_paper_size', PRINT_PDF_PAPER_SIZE_DEFAULT);
 124   $print_pdf_page_orientation = variable_get('print_pdf_page_orientation', PRINT_PDF_PAGE_ORIENTATION_DEFAULT);
 125   $print_pdf_content_disposition = variable_get('print_pdf_content_disposition', PRINT_PDF_CONTENT_DISPOSITION_DEFAULT);
 126
 127   if (variable_get('print_pdf_autoconfig', PRINT_PDF_AUTOCONFIG_DEFAULT)) {
 128     define("DOMPDF_ENABLE_PHP", FALSE);
 129     define("DOMPDF_ENABLE_REMOTE", TRUE);
 130     define("DOMPDF_TEMP_DIR", file_directory_temp());
 131   }
 132
 133   require_once(DRUPAL_ROOT . '/' . $print_pdf_pdf_tool);
 134   spl_autoload_register('DOMPDF_autoload');
 135
 136   // dompdf seems to have problems with something in system.css so let's not use it
 137   $html = preg_replace('!<link.*?modules/system/system.css.*?/>!', '', $html);
 138
 139   $url_array  = parse_url($print['url']);
 140
 141   $protocol = $url_array['scheme'] . '://';
 142   $host = $url_array['host'];
 143   $path = dirname($url_array['path']) . '/';
 144
 145   $dompdf = new DOMPDF();
 146   $dompdf->set_base_path($path);
 147   $dompdf->set_host($host);
 148   $dompdf->set_paper(drupal_strtolower($print_pdf_paper_size), $print_pdf_page_orientation);
 149   $dompdf->set_protocol($protocol);
 150
 151 // dompdf can't handle footers cleanly, so disable the following
 152 //  $html = theme('print_pdf_dompdf_footer', $html);
 153
 154   // Convert the euro sign to an HTML entity
 155   $html = str_replace('€', '&#0128;', $html);
 156
 157   // Convert from UTF-8 to ISO 8859-1 and then to HTML entities
 158   if (function_exists('utf8_decode')) {
 159     $html = utf8_decode($html);
 160   }
 161 // iconv fails silently when it encounters something that it doesn't know, so don't use it
 162 //  else if (function_exists('iconv')) {
 163 //    $html = iconv('UTF-8', 'ISO-8859-1', $html);
 164 //  }
 165   elseif (function_exists('mb_convert_encoding')) {
 166     $html = mb_convert_encoding($html, 'ISO-8859-1', 'UTF-8');
 167   }
 168   elseif (function_exists('recode_string')) {
 169     $html = recode_string('UTF-8..ISO_8859-1', $html);
 170   }
 171   $html = htmlspecialchars_decode(htmlentities($html, ENT_NOQUOTES, 'ISO-8859-1'), ENT_NOQUOTES);
 172
 173   //must get rid of tbody (dompdf goes into recursion)
 174   $html = preg_replace('!<tbody[^>]*?>|</tbody>!i', '', $html);
 175
 176   $dompdf->load_html($html);
 177
 178   $dompdf->render();
 179   $dompdf->stream($filename, array('Attachment' => ($print_pdf_content_disposition == 2)));
 180 }
 181
 182 /**
 183  * Generate the PDF file using the TCPDF library
 184  *
 185  * @param $print
 186  *   array containing the configured data
 187  * @param $html
 188  *   contents of the post-processed template already with the node data
 189  * @param $filename
 190  *   name of the PDF file to be generated
 191  * @see print_pdf_controller()
 192  */
 193 function _print_pdf_tcpdf($print, $html, $filename) {
 194   global $base_url, $language;
 195
 196   $print_pdf_pdf_tool = variable_get('print_pdf_pdf_tool', PRINT_PDF_PDF_TOOL_DEFAULT);
 197   $print_pdf_paper_size = variable_get('print_pdf_paper_size', PRINT_PDF_PAPER_SIZE_DEFAULT);
 198   $print_pdf_page_orientation = variable_get('print_pdf_page_orientation', PRINT_PDF_PAGE_ORIENTATION_DEFAULT);
 199   $print_pdf_content_disposition = variable_get('print_pdf_content_disposition', PRINT_PDF_CONTENT_DISPOSITION_DEFAULT);
 200
 201   $pdf_tool_path = realpath(dirname($print_pdf_pdf_tool));
 202
 203   if (variable_get('print_pdf_autoconfig', PRINT_PDF_AUTOCONFIG_DEFAULT)) {
 204     define('K_TCPDF_EXTERNAL_CONFIG', TRUE);
 205     define('K_PATH_MAIN', dirname($_SERVER['SCRIPT_FILENAME']));
 206     define('K_PATH_URL', $base_url);
 207     define('K_PATH_FONTS', $pdf_tool_path . '/fonts/');
 208     define('K_PATH_CACHE', $pdf_tool_path . '/cache/');
 209     define('K_PATH_IMAGES', '');
 210     define('K_BLANK_IMAGE', $pdf_tool_path . '/images/_blank.png');
 211     define('K_CELL_HEIGHT_RATIO', 1.25);
 212     define('K_SMALL_RATIO', 2/3);
 213   }
 214
 215   // Decode HTML entities in image filenames
 216   $pattern = "!<img\s[^>]*?src\s*?=\s*?['\"]?{$base_url}[^>]*?>!is";
 217   $html = preg_replace_callback($pattern, create_function('$matches', 'return html_entity_decode($matches[0], ENT_QUOTES);'), $html);
 218   // Remove queries from the image URL
 219   $pattern = "!(<img\s[^>]*?src\s*?=\s*?['\"]?{$base_url}[^>]*?)(?:%3F|\?)[\w=&]+([^>]*?>)!is";
 220   $html = preg_replace($pattern, '$1$2', $html);
 221
 222   require_once(DRUPAL_ROOT . '/' . $print_pdf_pdf_tool);
 223   if (strpos(PDF_PRODUCER, 'PHP4') === FALSE) {
 224     require_once(DRUPAL_ROOT . '/' . drupal_get_path('module', 'print_pdf') . '/print_pdf.class.inc');
 225   }
 226   else {
 227     drupal_set_message(t("The PHP4 version of TCPDF is not supported. Please upgrade it."), 'error', FALSE);
 228     drupal_goto($_GET['q']);
 229   }
 230
 231   $font = Array(
 232     check_plain(variable_get('print_pdf_font_family', PRINT_PDF_FONT_FAMILY_DEFAULT)),
 233     '',
 234     check_plain(variable_get('print_pdf_font_size', PRINT_PDF_FONT_SIZE_DEFAULT)),
 235   );
 236   $orientation = drupal_strtoupper($print_pdf_page_orientation[0]);
 237
 238   // create new PDF document
 239   $pdf = new PrintTCPDF($orientation , 'mm', $print_pdf_paper_size, TRUE);
 240
 241   // set document information
 242   $pdf->SetAuthor(strip_tags($print['submitted']));
 243   $pdf->SetCreator(variable_get('site_name', 'Drupal'));
 244   $pdf->SetTitle(html_entity_decode($print['title'], ENT_QUOTES, 'UTF-8'));
 245   $keys = implode(' ', explode("\n", trim(strip_tags($print['taxonomy']))));
 246   $pdf->SetKeywords($keys);
 247   $pdf->setPDFVersion('1.6');
 248
 249   if (defined('LANGUAGE_RTL') && $language->direction == LANGUAGE_RTL) {
 250     $pdf->setRTL(TRUE);
 251   }
 252
 253   $pdf = theme('print_pdf_tcpdf_header', $pdf, $html, $font);
 254   $pdf = theme('print_pdf_tcpdf_footer', $pdf, $html, $font);
 255   $pdf = theme('print_pdf_tcpdf_page', $pdf);
 256
 257   //initialize document
 258   $pdf->AliasNbPages();
 259
 260   // add a page
 261   $pdf->AddPage();
 262
 263   $pdf = theme('print_pdf_tcpdf_content', $pdf, $html, $font);
 264
 265   // reset pointer to the last page
 266   $pdf->lastPage();
 267
 268   // try to recover from any warning/error
 269   ob_clean();
 270
 271   //Close and output PDF document
 272   $output_dest = ($print_pdf_content_disposition == 2) ? 'D' : 'I';
 273   $pdf->Output($filename, $output_dest);
 274 }
 275
 276 /**
 277  * Generate the PDF file using wkhtmltopdf
 278  *
 279  * @param $print
 280  *   array containing the configured data
 281  * @param $html
 282  *   contents of the post-processed template already with the node data
 283  * @param $filename
 284  *   name of the PDF file to be generated
 285  * @see print_pdf_controller()
 286  */
 287 function _print_pdf_wkhtmltopdf($print, $html, $filename) {
 288   $print_pdf_pdf_tool = variable_get('print_pdf_pdf_tool', PRINT_PDF_PDF_TOOL_DEFAULT);
 289   $print_pdf_paper_size = drupal_strtolower(variable_get('print_pdf_paper_size', PRINT_PDF_PAPER_SIZE_DEFAULT));
 290   $print_pdf_page_orientation = variable_get('print_pdf_page_orientation', PRINT_PDF_PAGE_ORIENTATION_DEFAULT);
 291   $print_pdf_content_disposition = variable_get('print_pdf_content_disposition', PRINT_PDF_CONTENT_DISPOSITION_DEFAULT);
 292   $print_pdf_wkhtmltopdf_options = variable_get('print_pdf_wkhtmltopdf_options', PRINT_PDF_WKHTMLTOPDF_OPTIONS);
 293
 294   $dpi = 96;
 295
 296   if (function_exists('token_replace') && !empty($print_pdf_wkhtmltopdf_options)) {
 297     $print_pdf_wkhtmltopdf_options = token_replace($print_pdf_wkhtmltopdf_options, 'node', $print['node']);
 298   }
 299
 300   $descriptor = array(0 => array('pipe', 'r'), 1 => array('pipe', 'w'), 2 => array('pipe', 'w'));
 301   $pdf_output = (stristr(PHP_OS, 'Win')) ? tempnam(variable_get('file_temporary_path', conf_path() . '/private/temp'), 'pdf') : '-';
 302   $cmd = realpath($print_pdf_pdf_tool) . " --page-size $print_pdf_paper_size --orientation $print_pdf_page_orientation --dpi $dpi $print_pdf_wkhtmltopdf_options - $pdf_output";
 303
 304   $process = proc_open($cmd, $descriptor, $pipes, NULL, NULL);
 305
 306   if (is_resource($process)) {
 307     fwrite($pipes[0], $html);
 308     fclose($pipes[0]);
 309
 310     if (stristr(PHP_OS, 'Win')) {
 311       // It seems Windows can't use the pipe properly so get the contents from a file and then delete it.
 312       $pdf = file_get_contents($pdf_output);
 313       unlink($pdf_output);
 314     }
 315     else {
 316       $pdf = stream_get_contents($pipes[1]);
 317     }
 318     fclose($pipes[1]);
 319
 320     stream_set_blocking($pipes[2], 0);
 321     $error = stream_get_contents($pipes[2]);
 322     if (!empty($error)) {
 323       watchdog('print_pdf', 'wkhtmltopdf: ' . $error);
 324     }
 325     fclose($pipes[2]);
 326
 327     $retval = proc_terminate($process);
 328   }
 329
 330   if (!empty($pdf)) {
 331     if (headers_sent()) {
 332       die("Unable to stream pdf: headers already sent");
 333     }
 334     header("Cache-Control: private");
 335     header("Content-Type: application/pdf");
 336
 337     $attachment =  ($print_pdf_content_disposition == 2) ?  "attachment" :  "inline";
 338
 339     header("Content-Disposition: $attachment; filename=\"$filename\"");
 340
 341     echo $pdf;
 342     flush();
 343   }
 344   else {
 345     drupal_goto($print['url']);
 346     exit;
 347   }
 348 }
 349
 350 /**
 351  * Format the dompdf footer contents
 352  *
 353  * @param $html
 354  *   contents of the body of the HTML from the original node
 355  * @see theme_print_pdf_tcpdf_footer()
 356  */
 357 function theme_print_pdf_dompdf_footer(&$html) {
 358   preg_match('!<div class="print-footer">(.*?)</div>!si', $html, $tpl_footer);
 359   $html = str_replace($tpl_footer[0], '', $html);
 360
 361   $text = '<script type="text/php">
 362     if (isset($pdf)) {
 363       $font = Font_Metrics::get_font("verdana");;
 364       $size = 10;
 365       $color = array(0,0,0);
 366       $text_height = Font_Metrics::get_font_height($font, $size);
 367
 368       $w = $pdf->get_width();
 369       $h = $pdf->get_height();
 370
 371       $footer = $pdf->open_object();
 372
 373       // Draw a line along the bottom
 374       $y = $h - 25;
 375       $pdf->line(15, $y, $w - 15, $y, $color, 1);
 376
 377       $y += $text_height / 2;
 378       $pdf->page_text(15, $y, \'' . addslashes(strip_tags($tpl_footer[1])) . '\', $font, $size, $color);
 379
 380       $pdf->close_object();
 381       $pdf->add_object($footer, "all");
 382
 383       // Center the text
 384       $width = Font_Metrics::get_text_width("Page 1 of 2", $font, $size);
 385       $pagenumtxt = t("Page !n of !total", array("!n" => "{PAGE_NUM}", "!total" => "{PAGE_COUNT}"));
 386       $pdf->page_text($w - 15 - $width, $y, $pagenumtxt, $font, $size, $color);
 387     }
 388   </script>';
 389
 390   return str_replace("<body>", "<body>" . $text, $html);
 391 }
 392
 393 /**
 394  * Format the TCPDF header
 395  *
 396  * @param $pdf
 397  *   current TCPDF object
 398  * @param $html
 399  *   contents of the body of the HTML from the original node
 400  * @param $font
 401  *   array with the font definition (font name, styles and size)
 402  * @see theme_print_pdf_tcpdf_header()
 403  */
 404 function theme_print_pdf_tcpdf_header(&$pdf, &$html, $font) {
 405   preg_match('!<div class="print-logo">(.*?)</div>!si', $html, $tpl_logo);
 406   preg_match('!<h1 class="print-title">(.*?)</h1>!si', $html, $tpl_title);
 407   preg_match('!<div class="print-site_name">(.*?)</div>!si', $html, $tpl_site_name);
 408
 409   $ratio = 0;
 410   $logo = '';
 411   $logo_ret = preg_match('!src\s*=\s*(\'.*?\'|".*?"|[^\s]*)!i', $tpl_logo[1], $matches);
 412   if ($logo_ret) {
 413     $logo = trim($matches[1], '\'"');
 414     $size = getimagesize($logo);
 415     $ratio = $size ? ($size[0] / $size[1]) : 0;
 416   }
 417
 418   // set header font
 419   $pdf->setHeaderFont($font);
 420   // set header margin
 421   $pdf->SetHeaderMargin(5);
 422   // set header data
 423   $pdf->SetHeaderData($logo, 10 * $ratio, html_entity_decode($tpl_title[1], ENT_QUOTES, 'UTF-8'), strip_tags($tpl_site_name[1]));
 424
 425   return $pdf;
 426 }
 427
 428 /**
 429  * Format the TCPDF page settings (margins, etc)
 430  *
 431  * @param $pdf
 432  *   current TCPDF object
 433  * @see theme_print_pdf_tcpdf_page()
 434  */
 435 function theme_print_pdf_tcpdf_page(&$pdf) {
 436   // set margins
 437   $pdf->SetMargins(15, 20, 15);
 438   // set auto page breaks
 439   $pdf->SetAutoPageBreak(TRUE, 15);
 440   // set image scale factor
 441   sscanf(PDF_PRODUCER, "TCPDF %d.%d.%d", $major, $minor, $build);
 442   $imagescale = (($major >= 4) && ($minor >= 6) && ($build >= 2)) ? 1 : 4;
 443   $pdf->setImageScale($imagescale);
 444   // set image compression quality
 445   $pdf->setJPEGQuality(100);
 446
 447   return $pdf;
 448 }
 449
 450 /**
 451  * Format the TCPDF page content
 452  *
 453  * @param $pdf
 454  *   current TCPDF object
 455  * @param $html
 456  *   contents of the body of the HTML from the original node
 457  * @param $font
 458  *   array with the font definition (font name, styles and size)
 459  * @see theme_print_pdf_tcpdf_content()
 460  */
 461 function theme_print_pdf_tcpdf_content(&$pdf, &$html, $font) {
 462   // set content font
 463   $pdf->setFont($font[0], $font[1], $font[2]);
 464
 465   preg_match('!<body.*?>(.*)</body>!sim', $html, $matches);
 466   $pattern = '!(?:<div class="print-(?:logo|site_name|breadcrumb|footer)">.*?</div>|<hr class="print-hr" />)!si';
 467   $matches[1] = preg_replace($pattern, '', $matches[1]);
 468
 469   // Make CCK fields look better
 470   $matches[1] = preg_replace('!(<div class="field.*?>)\s*!sm', '$1', $matches[1]);
 471   $matches[1] = preg_replace('!(<div class="field.*?>.*?</div>)\s*!sm', '$1', $matches[1]);
 472   $matches[1] = preg_replace('!<div( class="field-label.*?>.*?)</div>!sm', '<strong$1</strong>', $matches[1]);
 473
 474   // Since TCPDF's writeHTML is so bad with <p>, do everything possible to make it look nice
 475   $matches[1] = preg_replace('!<(?:p(|\s+.*?)/?|/p)>!i', '<br$1 />', $matches[1]);
 476   $matches[1] = str_replace(array('<div', 'div>'), array('<span', 'span><br />'), $matches[1]);
 477   do {
 478     $prev = $matches[1];
 479     $matches[1] = preg_replace('!(</span>)<br />(\s*?</span><br />)!s', '$1$2', $matches[1]);
 480   } while ($prev != $matches[1]);
 481
 482   @$pdf->writeHTML($matches[1]);
 483
 484   return $pdf;
 485 }
 486
 487 /**
 488  * Format the TCPDF footer contents
 489  *
 490  * @param $pdf
 491  *   current TCPDF object
 492  * @param $html
 493  *   contents of the body of the HTML from the original node
 494  * @param $font
 495  *   array with the font definition (font name, styles and size)
 496  * @see theme_print_pdf_tcpdf_footer()
 497  */
 498 function theme_print_pdf_tcpdf_footer(&$pdf, &$html, $font) {
 499   preg_match('!<div class="print-footer">(.*?)</div>!si', $html, $tpl_footer);
 500   $footer = trim(preg_replace('!</?div[^>]*?>!i', '', $tpl_footer[1]));
 501
 502   // set footer font
 503   $font[2] *= 0.8;
 504   $pdf->setFooterFont($font);
 505   // set footer margin
 506   $pdf->SetFooterMargin(10);
 507   // set footer data
 508   $pdf->SetFooterData($footer);
 509
 510   return $pdf;
 511 }
 512
 513 /**
 514  * Format the TCPDF footer layout
 515  *
 516  * @param $pdf
 517  *   current TCPDF object
 518  * @see theme_print_pdf_tcpdf_footer2()
 519  */
 520 function theme_print_pdf_tcpdf_footer2(&$pdf) {
 521   //Position at 1.5 cm from bottom
 522   $pdf->writeHTMLCell(0, 15, 15, -10, $pdf->footer, 0, 0, 0, TRUE, '');
 523
 524   $ormargins = $pdf->getOriginalMargins();
 525   $pagenumtxt = t('Page !n of !total', array('!n' => $pdf->PageNo(), '!total' => $pdf->getAliasNbPages()));
 526   //Print page number
 527   if ($pdf->getRTL()) {
 528     $pdf->SetX($ormargins['right']);
 529     $pdf->Cell(0, 10, $pagenumtxt, 'T', 0, 'L');
 530   }
 531   else {
 532     $pdf->SetX($ormargins['left']);
 533     $pdf->Cell(0, 10, $pagenumtxt, 'T', 0, 'R');
 534   }
 535
 536   return $pdf;
 537 }