iText doesn't support signing certified docs.

Paulo

> -----Original Message-----
> From: itext-questions-bounces@(protected)
> [mailto:itext-questions-bounces@(protected)
> Behalf Of Khurram Salim
> Sent: Wednesday, July 19, 2006 11:16 AM
> To: itext-questions@(protected)
> Subject: [iText-questions] I found some problems regarding
> certified PDFdocuments using iText 1.4.2
>
> Hi everybody!
>
> I have some problems regarding the Certified PDf document
> signing. Please see below steps and let me know that if I'm
> doing anything wrong.
>
> Steps:
> ====
> 1 - I have created an empty signature in PDF document.
> 2 - I have certified the document by creating a digital signature.
> 3 - I sign the existing empty signature.
> 4 - The previous signature got corrupted or PDf document got
> corrupted.
> 5 - Please see below sample code as well as some supported
> PDF documents.
>
> Sample code:
> =========
>
>   //Signing Empty Signature
>   //Getting Source PDF
>   obj_srcFile = new File("Second.pdf");
>
>   //Reading PDF File
>   m_objPDFIn = new PdfReader("Second.pdf");
>
>   //Getting Page Total Page Nos of PDF
>   i_totalpageno = m_objPDFIn.getNumberOfPages();
>
>   //Getting Empty Signatures
>   AcroFields obj_emptysig = m_objPDFIn.getAcroFields();
>
>   //Storing Signature Names
>   ArrayList obj_signames = obj_emptysig.getSignatureNames();
>
>   //Creating Array of Signamture Names
>   Object[] obj_emptysigname = obj_signames.toArray();
>
>   //No. of of Signatures
>   int i_noofsig = obj_emptysigname.length;
>
>   //Name of Signed File [Signed File Loaded]
>   m_objfos = new FileOutputStream("EmptyFilled.pdf");
>
>   //Creating Signature
>   m_objPDFStamp = PdfStamper.createSignature(m_objPDFIn,
> m_objfos, '\0', null, true);
>
>   //Getting Signature Appearance
>   m_objSigApp = m_objPDFStamp.getSignatureAppearance();
>   //Setting Signature / Signing Parameters
>   m_objSigApp.setCrypto(m_objPrk, m_objCertChain,null,
> PdfSignatureAppearance.WINCER_SIGNED);
>
>   //Setting Signing Reason
>   m_objSigApp.setReason("I'm Auhtor of this document");
>
>   //Setting Contact Detail
>   m_objSigApp.setContact("Testing Testing, Testing Testing
> Testing ");
>
>   //Loading Signature Image in Signature Appearance
>   m_objSigApp.setImage(obj_pic);
>
>   //Setting Location
>   m_objSigApp.setLocation("Testing Testing ");
>
>
>   //Setting Empty Signature
>   m_objSigApp.setVisibleSignature("Signature1");
>
>   //Setting Empty Signature
>   //m_objSigApp.setVisibleSignature("Signature2");
>
>   //Closing PdfStamper
>   m_objPDFStamp.close();
>
>   System.out.println("PDF Document is Signed...[Empty Signature]");
>
>   //Closing OS
>   m_objfos.close();
>
>
> Regards,
>
> Khurram Saleem
>
> ________________________________
>
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