Certification in iText only works in Acrobat 7.
Paulo
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On
> Behalf Of Felix Joussein
> Sent: Friday, October 27, 2006 1:51 PM
> To: Post all your questions about iText here
> Subject: [iText-questions] Signatures and certification
>
> Hello List,
>
> I wrote a little tool using the itext library to sign and certify pdf
> documents.
>
> Here the relevant part of the code:
>
> KeyStore ks = KeyStore.getInstance("pkcs12");
> ks.load(new FileInputStream(pfxNameVal),
> pfxPassVal.toCharArray());
> String alias = (String)ks.aliases().nextElement();
> PrivateKey key = (PrivateKey)ks.getKey(alias,
> pfxPassVal.toCharArray());
> java.security.cert.Certificate[] chain =
> ks.getCertificateChain(alias);
> PdfReader reader = new PdfReader(inPDFVal);
> FileOutputStream fout = new FileOutputStream(outPDFVal);
> PdfStamper stp =
> PdfStamper.createSignature(reader, fout,
> '\0');
> PdfSignatureAppearance sap =
> stp.getSignatureAppearance();
> sap.setCrypto(key, chain, null,
> PdfSignatureAppearance.WINCER_SIGNED);
> sap.setReason("Ich bin der Autor dieses Dokuments.");
> sap.setLocation("Wien");
>
> stp.setEncryption(true,pdfUPWVal,pdfAPWVal,PdfWriter.AllowCopy
> +PdfWriter.AllowPrinting);
> if(sigVisVal.equalsIgnoreCase("1")){
> sap.setVisibleSignature(new Rectangle(100, 150, 200,
> 200), 1, null);
> }
> if(certVisVal.equalsIgnoreCase("1")){
> sap.setCertified(true);
> }
> stp.close();
>
>
> The result with Acrobat Reader 7.x is as expected, a signed,
> certified
> document:
> Document signature is VALID.
> - The document has not been changed since the signature was applied.
> - The document is signed by the current user.
>
>
> When opening the same file with Acrobat Reader 6.x, it says:
> Document signature is INVALID.
> - There have been changes made to this document that invalidate the
> signature.
> - The document is signed by the current user.
>
> When I sign & certify a document using the Adobe Acrobat 6, the
> signature is valid in any of the 2 versions above.
>
> What is wrong to this code?
> Can someone help me on that?
>
> Regards,
>
> Felix Joussein
>
>
> --
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>
>
> --------------------------------------------------------------
> -----------
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> Download IBM WebSphere Application Server v.1.0.1 based on
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> dat=121642
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-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
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