php实现往pdf中加数字签名操作示例【附源码下载

//============================================================+ // File name : example_052.php // Begin : 2009-05-07 // Last Update : 2013-05-14 // // Description : Example 052 for TCPDF class // Certification Signature (experimental) // // Author: Nicola Asuni // // (c) Copyright: // Nicola Asuni // Tecnick.com LTD // // 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 */ // Include the main TCPDF library (search for installation path). require_once('tcpdf_include.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 (optional) if (@file_exists(dirname(__FILE__).'/lang/eng.php')) { require_once(dirname(__FILE__).'/lang/eng.php'); $pdf->setLanguageArray($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://data/cert/tcpdf.crt'; $certificate = 'file://'.realpath('./data/cert/tcpdf.crt'); // set additional information $info = array( 'Name' => 'TCPDF', 'Location' => 'Office', 'Reason' => 'Testing TCPDF', 'ContactInfo' => 'https://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="https://www.tcpdf.org" ></a>'; $pdf->writeHTML($text, true, 0, true, 0); // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - // *** set signature appearance *** // create content for signature (image and/or text) $pdf->Image('images/tcpdf_signature.png', 180, 60, 15, 15, 'PNG'); // define active area for signature appearance $pdf->setSignatureAppearance(180, 60, 15, 15); // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - // *** set an empty signature appearance *** $pdf->addEmptySignatureAppearance(180, 80, 15, 15); // --------------------------------------------------------- //Close and output PDF document $pdf->Output('example_052.pdf', 'D'); //============================================================+ // END OF FILE //============================================================+

其中tcpdf_include.php文件(源自tcpdf插件)如下:

<?php //============================================================+ // File name : tcpdf_include.php // Begin : 2008-05-14 // Last Update : 2014-12-10 // // Description : Search and include the TCPDF library. // // Author: Nicola Asuni // // (c) Copyright: // Nicola Asuni // Tecnick.com LTD // // info@tecnick.com //============================================================+ /** * Search and include the TCPDF library. * @package com.tecnick.tcpdf * @abstract TCPDF - Include the main class. * @author Nicola Asuni * @since 2013-05-14 */ // always load alternative config file for examples require_once('config/tcpdf_config_alt.php'); // Include the main TCPDF library (search the library on the following directories). $tcpdf_include_dirs = array( realpath('../tcpdf.php'), '/usr/share/php/tcpdf/tcpdf.php', '/usr/share/tcpdf/tcpdf.php', '/usr/share/php-tcpdf/tcpdf.php', '/var/www/tcpdf/tcpdf.php', '/var/www/html/tcpdf/tcpdf.php', '/usr/local/apache2/htdocs/tcpdf/tcpdf.php' ); foreach ($tcpdf_include_dirs as $tcpdf_include_path) { if (@file_exists($tcpdf_include_path)) { require_once($tcpdf_include_path); break; } } //============================================================+ // END OF FILE //============================================================+

eng.php文件如下:

内容版权声明:除非注明,否则皆为本站原创文章。

转载注明出处:https://www.heiqu.com/80e70783c479b666b28f9f088f7f826a.html