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  <?php
  //============================================================+
  // File name   : example_052.php
  // Begin       : 2009-05-07
  // Last Update : 2010-08-08
  //
  // Description : Example 052 for TCPDF class
  //               Certification Signature (experimental)
  //
  // Author: Nicola Asuni
  //
  // (c) Copyright:
  //               Nicola Asuni
  //               Tecnick.com s.r.l.
  //               Via Della Pace, 11
  //               09044 Quartucciu (CA)
  //               ITALY
  //               www.tecnick.com
  //               info@tecnick.com
  //============================================================+
  
  /**
   * Creates an example PDF TEST document using TCPDF
   * @package com.tecnick.tcpdf
   * @abstract TCPDF - Example: Certification Signature (experimental)
   * @author Nicola Asuni
   * @since 2009-05-07
   */
  
  require_once('../config/lang/eng.php');
  require_once('../tcpdf.php');
  
  // create new PDF document
  $pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);
  
  // set document information
  $pdf->SetCreator(PDF_CREATOR);
  $pdf->SetAuthor('Nicola Asuni');
  $pdf->SetTitle('TCPDF Example 052');
  $pdf->SetSubject('TCPDF Tutorial');
  $pdf->SetKeywords('TCPDF, PDF, example, test, guide');
  
  // set default header data
  $pdf->SetHeaderData(PDF_HEADER_LOGO, PDF_HEADER_LOGO_WIDTH, PDF_HEADER_TITLE.' 052', PDF_HEADER_STRING);
  
  // set header and footer fonts
  $pdf->setHeaderFont(Array(PDF_FONT_NAME_MAIN, '', PDF_FONT_SIZE_MAIN));
  $pdf->setFooterFont(Array(PDF_FONT_NAME_DATA, '', PDF_FONT_SIZE_DATA));
  
  // set default monospaced font
  $pdf->SetDefaultMonospacedFont(PDF_FONT_MONOSPACED);
  
  //set margins
  $pdf->SetMargins(PDF_MARGIN_LEFT, PDF_MARGIN_TOP, PDF_MARGIN_RIGHT);
  $pdf->SetHeaderMargin(PDF_MARGIN_HEADER);
  $pdf->SetFooterMargin(PDF_MARGIN_FOOTER);
  
  //set auto page breaks
  $pdf->SetAutoPageBreak(TRUE, PDF_MARGIN_BOTTOM);
  
  //set image scale factor
  $pdf->setImageScale(PDF_IMAGE_SCALE_RATIO);
  
  //set some language-dependent strings
  $pdf->setLanguageArray($l);
  
  // ---------------------------------------------------------
  
  /*
  NOTES:
   - To create self-signed signature: openssl req -x509 -nodes -days 365000 -newkey rsa:1024 -keyout tcpdf.crt -out tcpdf.crt
   - To export crt to p12: openssl pkcs12 -export -in tcpdf.crt -out tcpdf.p12
   - To convert pfx certificate to pem: openssl pkcs12 -in tcpdf.pfx -out tcpdf.crt -nodes
  */
  
  // set certificate file
  $certificate = 'file://../tcpdf.crt';
  
  // set additional information
  $info = array(
  	'Name' => 'TCPDF',
  	'Location' => 'Office',
  	'Reason' => 'Testing TCPDF',
  	'ContactInfo' => 'http://www.tcpdf.org',
  	);
  
  // set document signature
  $pdf->setSignature($certificate, $certificate, 'tcpdfdemo', '', 2, $info);
  
  // set font
  $pdf->SetFont('helvetica', '', 12);
  
  // add a page
  $pdf->AddPage();
  
  // print a line of text
  $text = 'This is a <b color="#FF0000">digitally signed document</b> using the default (example) <b>tcpdf.crt</b> certificate.<br />To validate this signature you have to load the <b color="#006600">tcpdf.fdf</b> on the Arobat Reader to add the certificate to <i>List of Trusted Identities</i>.<br /><br />For more information check the source code of this example and the source code documentation for the <i>setSignature()</i> method.<br /><br /><a href="http://www.tcpdf.org">www.tcpdf.org</a>';
  $pdf->writeHTML($text, true, 0, true, 0);
  
  
  // *** set signature appearance ***
  
  // create content for signature (image and/or text)
  $pdf->Image($file='../images/tcpdf_signature.png', $x=180, $y=60, $w=15, $h=15, $type='PNG');
  // define active area for signature appearance
  $pdf->setSignatureAppearance($x=180, $y=60, $w=15, $h=15);
  
  // ---------------------------------------------------------
  
  //Close and output PDF document
  $pdf->Output('example_052.pdf', 'I');
  
  //============================================================+
  // END OF FILE
  //============================================================+