I am going to tweak what Michael said a bit... The FIRST sign of a document should always be a "full save", then all subsequent signs should be appends. That ensures that the original/signed document won't have any unnecessary stuff in it AND then achieves the "view revision" capability mentioned below.
Leonard -----Original Message----- From: mkl [mailto:[email protected]] Sent: Thursday, August 12, 2010 11:05 AM To: [email protected] Subject: Re: [iText-questions] signing a pdf in three different steps Andrea, famagosta wrote: > My input document is a PDF/A, that (by specification), is an unmodifiable. > This is non really true because i can sign it, so i will modify it! > I understand why itext will modify the moddate at each save, but i think > that PDF/A and modDate are in conflict. As Leonard already said, PDF/A is not about unmodifiability. But if your intention is to allow users to at least be able to easily go back the document as it was before signing, you should consider signing in append mode (have a look at all the PdfStamper.createSignature overloads). If you do, your users can go back to the very original revision. Regards, Michael. -- View this message in context: http://itext-general.2136553.n4.nabble.com/signing-a-pdf-in-three-different-steps-tp2322393p2322825.html Sent from the iText - General mailing list archive at Nabble.com. ------------------------------------------------------------------------------ This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev _______________________________________________ iText-questions mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/itext-questions Buy the iText book: http://www.itextpdf.com/book/ Check the site with examples before you ask questions: http://www.1t3xt.info/examples/ You can also search the keywords list: http://1t3xt.info/tutorials/keywords/ ------------------------------------------------------------------------------ This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev _______________________________________________ iText-questions mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/itext-questions Buy the iText book: http://www.itextpdf.com/book/ Check the site with examples before you ask questions: http://www.1t3xt.info/examples/ You can also search the keywords list: http://1t3xt.info/tutorials/keywords/
