Hi All, I am trying to certify a PDF which has an empty signature field and a text field, using the code below, allowing only signing to be done later in the existing empty signature field but when I opened the certified document in Acrobat 7, it does not allow me to sign any empty signature field.
Here is the code I am trying:
System.out.println("Signing and Certifying...");
PdfReader reader = new PdfReader(m_strInputPDFDocument);
FileOutputStream fout = new FileOutputStream(a_strOutputPDFDocument);
// creating the appearance
PdfStamper stp = PdfStamper.createSignature(reader, fout, '\0', null,
false);
PdfSignatureAppearance sap = stp.getSignatureAppearance();
sap.setCrypto(key, chain, null, PdfSignatureAppearance.WINCER_SIGNED);
sap.setReason("I'm the author");
sap.setLocation("Lisbon");
sap.setCertified(true);
stp.setEncryption(true, "","testing", 256);//encrypt with no open PDF
permissions
When I am only encrypting the PDF, 256 parameter does work correctly works
and I can sign the PDF later on.
I am using iText 1.4.6 with JRE 1.5.
Am I doing some thing wrong here.
Best Regards,
Wahaj
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