Chanin Laohaphan, Chanin Laohaphan wrote > I wonder if LtvTimestamp actually supports adding a document timestamp to > an XFA-based file.
I'm afraid it most likely is the other way around. PAdES style document time stamps don't care about how PDFs are built, they may be added to any PDFs in exactly the same manner. Thus, the LTV document timestamp most likely is added completely according to the PAdES specification part 4. XFA viewers (e.g. Adobe Reader when showing a PDF with XFA forms) on the other hand may not accept signing information using mechanisms beyond ISO 32000-1 and the current XFA spec (still 3.3 I assume). Thus, such a viewer may be baffled by the document time stamp. You have to keep in your mind that PAdES style document time stamps currently are merely an extension to the current PDF specification. They will be included as core material in the upcoming new one, but that may still take some time to be published. Any viewer (and even every viewer mode, e.g. the XFA mode of Adobe Reader), therefore, currently is completely working by the book if it ignores or even complains about document time stamps. Regards, Michael -- View this message in context: http://itext-general.2136553.n4.nabble.com/LtvTimestamp-on-XFA-Based-Document-tp4659582p4659591.html Sent from the iText - General mailing list archive at Nabble.com. ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831&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
