php实现往pdf中加数字签名操作示例【附源码下载】

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' => '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 using the default (example) tcpdf.crt certificate.
To validate this signature you have to load the on the Arobat Reader to add the certificate to List of Trusted Identities.

For more information check the source code of this example and the source code documentation for the setSignature() method.

www.tcpdf.org'; $pdf->writeHTML($text,0); // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - // *** set signature appearance *** // create content for signature (image and/or text) $pdf->Image('images/tcpdf_signature.png',180,60,15,'PNG'); // define active area for signature appearance $pdf->setSignatureAppearance(180,15); // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - // *** set an empty signature appearance *** $pdf->addEmptySignatureAppearance(180,80,15); // --------------------------------------------------------- //Close and output PDF document $pdf->Output('example_052.pdf','D'); //============================================================+ // END OF FILE //============================================================+