Florian,
Gruber, Florian wrote > Why exactly would digital signatures in PDFs based on specs prior to v1.7 > no longer considered to be safe? In addition to Bruno's answer consider that *ProcSet is considered obsolete since PDF 1.4*. Thus, the verification software either is based on PDF < 1.3 or buggy: at least in respect to ProcSet, but ignoring the PDF specification in this regards may indicate that other standards, especially security standards, also are not correctly handled. Security standards from before PDF 1.4 indeed are outdated, and buggy verifiers also are not to be trusted. Regards, Michael -- View this message in context: http://itext-general.2136553.n4.nabble.com/put-ProcSet-to-AP-Dictionary-tp4660007p4660015.html Sent from the iText - General mailing list archive at Nabble.com. ------------------------------------------------------------------------------ The best possible search technologies are now affordable for all companies. Download your FREE open source Enterprise Search Engine today! Our experts will assist you in its installation for $59/mo, no commitment. Test it for FREE on our Cloud platform anytime! http://pubads.g.doubleclick.net/gampad/clk?id=145328191&iu=/4140/ostg.clktrk _______________________________________________ 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
