David, david wrote > According to the specification (ISO 32000-1:2008), I have locked All > fields. But my signature are not valide. > > > http://itext-general.2136553.n4.nabble.com/file/n4570200/FormulaireROSignedWithITextLocked.pdf > FormulaireROSignedWithITextLocked.pdf
I'm afraid Adobe Reader X and Acrobat 9 both show some weird behavior here. 1. As a result of checking your signature "Signature1" they claim that the document has been changed and, thus, the signature no longer is valid. 2. On the document tab of the signature properties they both claim that some changes applied to the document after signing were disallowed by the author of the document. 3. BUT when asked to determine the actual list of changes (bottom of the same tab), they both admit that there were no changes to the document at all after signing. Items 1 and especially 2 do not make any sense as there definitively were no changes after applying your signature. In essence it seems like you cannot trust Reader or Acrobat to correctly analyze PDFs in this context. At first glance I spotted the read-only flags (/Ff 1) now added by you. Reverse-engineering what else Acrobat and Reader expect might amount to quite some task... Regards, Michael -- View this message in context: http://itext-general.2136553.n4.nabble.com/signature-with-readonly-mark-field-tp4534988p4573256.html Sent from the iText - General mailing list archive at Nabble.com. ------------------------------------------------------------------------------ For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 _______________________________________________ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions iText(R) is a registered trademark of 1T3XT BVBA. Many questions posted to this list can (and will) be answered with a reference to the iText book: http://www.itextpdf.com/book/ Please check the keywords list before you ask for examples: http://itextpdf.com/themes/keywords.php
