php实现往pdf中加数字签名操作示例

第php实现往pdf中加数字签名操作示例//============================================================+

//Filename:example_052.php

//Begin:2009-05-07

//LastUpdate:2013-05-14

//Description:Example052forTCPDFclass

//CertificationSignature(experimental)

//Author:NicolaAsuni

//(c)Copyright:

//NicolaAsuni

//TLTD

//

//info@

//============================================================+

*CreatesanexamplePDFTESTdocumentusingTCPDF

*@packagecom.tecnick.tcpdf

*@abstractTCPDF-Example:CertificationSignature(experimental)

*@authorNicolaAsuni

*@since2009-05-07

//IncludethemainTCPDFlibrary(searchforinstallationpath).

require_once('tcpdf_include.php');

//createnewPDFdocument

$pdf=newTCPDF(PDF_PAGE_ORIENTATION,PDF_UNIT,PDF_PAGE_FORMAT,true,'UTF-8',false);

//setdocumentinformation

$pdf-SetCreator(PDF_CREATOR);

$pdf-SetAuthor('NicolaAsuni');

$pdf-SetTitle('TCPDFExample052');

$pdf-SetSubject('TCPDFTutorial');

$pdf-SetKeywords('TCPDF,PDF,example,test,guide');

//setdefaultheaderdata

$pdf-SetHeaderData(PDF_HEADER_LOGO,PDF_HEADER_LOGO_WIDTH,PDF_HEADER_TITLE.'052',PDF_HEADER_STRING);

//setheaderandfooterfonts

$pdf-setHeaderFont(Array(PDF_FONT_NAME_MAIN,'',PDF_FONT_SIZE_MAIN));

$pdf-setFooterFont(Array(PDF_FONT_NAME_DATA,'',PDF_FONT_SIZE_DATA));

//setdefaultmonospacedfont

$pdf-SetDefaultMonospacedFont(PDF_FONT_MONOSPACED);

//setmargins

$pdf-SetMargins(PDF_MARGIN_LEFT,PDF_MARGIN_TOP,PDF_MARGIN_RIGHT);

$pdf-SetHeaderMargin(PDF_MARGIN_HEADER);

$pdf-SetFooterMargin(PDF_MARGIN_FOOTER);

//setautopagebreaks

$pdf-SetAutoPageBreak(TRUE,PDF_MARGIN_BOTTOM);

//setimagescalefactor

$pdf-setImageScale(PDF_IMAGE_SCALE_RATIO);

//setsomelanguage-dependentstrings(optional)

if(@file_exists(dirname(__FILE__).'/lang/eng.php')){

require_once(dirname(__FILE__).'/lang/eng.php');

$pdf-setLanguageArray($l);

//

NOTES:

-Tocreateself-signedsignature:opensslreq-x509-nodes-days365000-newkeyrsa:1024-keyouttcpdf.crt-outtcpdf.crt

-Toexportcrttop12:opensslpkcs12-export-intcpdf.crt-outtcpdf.p12

-Toconvertpfxcertificatetopem:opensslpkcs12-intcpdf.pfx-outtcpdf.crt-nodes

//setcertificatefile

$certificate='file://data/cert/tcpdf.crt';

$certificate='file://'.realpath('./data/cert/tcpdf.crt');

//setadditionalinformation

$info=array(

'Name'='TCPDF',

'Location'='Office',

'Reason'='TestingTCPDF',

'ContactInfo'='',

//setdocumentsignature

$pdf-setSignature($certificate,$certificate,'tcpdfdemo','',2,$info);

//setfont

$pdf-SetFont('helvetica','',12);

//addapage

$pdf-AddPage();

//printalineoftext

$text='Thisisabcolor="#FF0000"digitallysigneddocument/busingthedefault(example)btcpdf.crt/bcertificate.br/Tovalidatethissignatureyouhavetoloadthebcolor="#006600"tcpdf.fdf/bontheArobatReadertoaddthecertificatetoiListofTrustedIdentities/i.br/br/FormoreinformationcheckthesourcecodeofthisexampleandthesourcecodedocumentationfortheisetSignature()/imethod.br/br/ahref=""rel="externalnofollow"/a

$pdf-writeHTML($text,true,0,true,0);

//---------------------------------------

//***setsignatureappearance***

//createcontentforsignature(imageand/ortext)

$pdf-Image('images/tcpdf_signature.png',180,60,15,15,'PNG');

//defineactiveareaforsignatureappearance

$pdf-setSignatureAppearance(180,60,15,15);

//---------------------------------------

//***setanemptysignatureappearance***

$pdf-addEmptySignatureAppearance(180,80,15,15);

//

//CloseandoutputPDFdocument

$pdf-Output('example_052.pdf','D');

//============================================================+

//ENDOFFILE

//============================================================+

其中tcpdf_include.php文件(源自tcpdf插件)如下：

//============================================================+

//Filename:tcpdf_include.php

//Begin:2008-05-14

//LastUpdate:2014-12-10

//Description:SearchandincludetheTCPDFlibrary.

//Author:NicolaAsuni

//(c)Copyright:

//NicolaAsuni

//TLTD

//

//info@

//============================================================+

*SearchandincludetheTCPDFlibrary.

*@packagecom.tecnick.tcpdf

*@abstractTCPDF-Includethemainclass.

*@authorNicolaAsuni

*@since2013-05-14

//alwaysloadalternativeconfigfileforexamples

require_once('config/tcpdf_config_alt.php');

//IncludethemainTCPDFlibrary(searchthelibraryonthefollowingdirectories).

$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($tcpdf_include_dirsas$tcpdf_include_path){

if(@file_exists($tcpdf_include_path)){

require_once($tcpdf_include_path);

break;

//============================================================+

//ENDOFFILE

//============================================================+

eng.php文件如下：

//============================================================+

//Filename:eng.php

//Begin:2004-03-03

//LastUpdate:2010-10-26

//Description:LanguagemoduleforTCPDF

//(containstranslatedtexts)

//English

//Author:NicolaAsuni

//(c)Copyright:

//NicolaAsuni

//TLTD

//ManorCoachHouse,ChurchHill

//Aldershot,Hants,GU124RQ

//UK

//

//info@

//============================================================+

*TCPDFlanguagefile(containstranslatedtexts).

*@packagecom.tecnick