twain, mkl wrote > Depending on the type of the first signature (and other former > signatures), only certain manipulations are allowed, even if uing append > mode. > > Have a look e.g. at > > http://www.adobe.com/it/security/pdfs/DigitalSignaturesInPDF.pdf > > Especially the item "How Certified Documents Work"
Another interesting resource is this: http://wwwimages.adobe.com/www.adobe.com/content/dam/Adobe/en/devnet/reader/pdfs/readercomp_digitalsignatures.pdf Look at "Allowed and disallowed changes"; especially the item "Limitations on adding signature fields to signed but uncertified documents" makes clear that those limitations are not limited to certified documents. Regards, Michael -- View this message in context: http://itext-general.2136553.n4.nabble.com/New-revision-issues-tp4658282p4658288.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
