I'm having two problems signing PDFs using a Verisign certificate with
iText 2.0.4.
1. I'm including an Image of the handwritten signature using
setSignatureGraphic. The signed PDF that iText produces does not show
the image, though.
2. When I open the signed document in Acrobat Reader 8, it tells me that
"The validity of the document is UNKNOWN. The plug-in required is not
available.". When I click on the signature field, it tells me that the
Verisign.PPKVS plug-in cannot be found. I have searched on Verisign's
web site with no luck in finding such a plug-in.
Any help with these two issues would be very appreciated.
Carl
ps. In case it helps. here is my code:
KeyStore ks = KeyStore.getInstance("pkcs12");
ks.load(new FileInputStream("C:/tt/csayres.pfx"),password.toCharArray());
String alias = (String)ks.aliases().nextElement();
PrivateKey key = (PrivateKey)ks.getKey(alias,password.toCharArray());
java.security.cert.Certificate[] chain = ks.getCertificateChain(alias);
PdfReader pdfReader = new PdfReader(new FileInputStream("C:/tt/in.pdf"));
FileOutputStream fos = new FileOutputStream("C:/tt/out.pdf");
PdfStamper stamper = PdfStamper.createSignature(pdfReader,fos,'\0');
PdfSignatureAppearance appearance = stamper.getSignatureAppearance();
Image img = Image.getInstance("C:/tt/csayres.png");
appearance.setRender(PdfSignatureAppearance.SignatureRenderGraphicAndDescription);
appearance.setSignatureGraphic(img);
appearance.setAcro6Layers(true);
appearance.setVisibleSignature(new
Rectangle(97.51f,234.24f,378.38f,253.41f),4,null);
appearance.setCertificationLevel(PdfSignatureAppearance.CERTIFIED_NO_CHANGES_ALLOWED);
appearance.setCrypto(key,chain,null,PdfSignatureAppearance.VERISIGN_SIGNED);
stamper.close();
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