twain, twain wrote > So I desume that revision, for approval signatures, doesn't allow to > modify a signed pdf. > If you have a signed pdf you can only re-sign it without changes despite > of revision.
No. Please re-read "Adobe Acrobat 9 Digital Signatures, Changes and Improvements": Allowed actions for signed but uncertified documents When a document is first signed, the set of allowed actions by default is set to those specified in the following table. Applying disallowed changes to a signed document invalidates the signatures on that document. Allowed • Adding signature fields (see Limitations on adding signature fields to signed but uncertified documents) • Adding or editing annotations • Supplying form field values • Digitally signing Disallowed • Adding form fields other than signature fields • Changing page content Regards, Michael -- View this message in context: http://itext-general.2136553.n4.nabble.com/New-revision-issues-tp4658282p4658293.html Sent from the iText - General mailing list archive at Nabble.com. ------------------------------------------------------------------------------ AlienVault Unified Security Management (USM) platform delivers complete security visibility with the essential security capabilities. Easily and efficiently configure, manage, and operate all of your security controls from a single console and one unified framework. Download a free trial. http://p.sf.net/sfu/alienvault_d2d _______________________________________________ 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
