Hi,
I am trying to sign digitally pdf-document. I have made RSA keys with
openssl. I alo made class Signa which reads private key from file and
then signs byte-array (byte[]). Here is code with which I am trying to
sign pdf document:
// Pdf signature object
PdfSignature signa = new PdfSignature( "RSA" );
//name
signa.setName( "Testi signature ");
// This add "signature field" into pdf document
PdfFormField signature = acroForm.addSignature("Allekirjoitus", 73,
705, 149, 759);
// Here are bytes to be signed
PdfContentByte cb = writer.getDirectContent();
// Object that makes signature
Signa s = new Signa();
// Into signature object is added signatured bytes.
signa.setContents( s.sign( cb.toPdf( writer ) ) );
// signature is added into document
signature.createSignature( writer );
signature.setValue(signa);
writer.addToBody( signature );
It does not work. PDF-reader says that signature is corrupted. Can
someone help and tell me what I am doing wrong? What I should do else
who?
Yours
Sami
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