Thanks a lot but it fails also. So I will wait for the documentation. the app prints following:
Signature name: Signature1 Signature covers whole document: true Document revision: 1 of 1 day of month: 5 month: 3 year: 2012 hour: 3 minute: 57 Subject: xxx Platinum TSA 2010 - G2 - Unit 01 Document modified: false Timestamp imprint verifies: false Certificate failed: Has unsupported critical extension Am 05.04.2012 um 16:35 schrieb Paulo Soares: > I'll update the documentation this weekend. > > Paulo > > On Thu, Apr 5, 2012 at 3:06 PM, Christian Fritschka > <christian.fritsc...@abacus.ch> wrote: >> Hi all, >> >> once again but with the latest iText vesion. I signed a pdf with the example >> "How to apply verification according to PAdES-LTV" and wanted to verify the >> signed document with example "How to verify". Both from >> "http://itextpdf.sourceforge.net/howtosign.html";. >> >> The validation is ok - a part of it. Because "Timestamp imprint verifies:" >> says all the time "false". >> If I check the signed document in Adobe everthing is fine. But not with >> iText. >> >> Is there a solution how get "Timestamp imprint verifies:" to true? >> >> Thanks a lot >> >> Am 27.01.2012 um 15:34 schrieb mkl: >> >>> Christian, >>> >>> Christian Fritschka wrote >>>> I have a PDF which is signed with a timestamp. When I try to verify the >>>> signature I get the message that this signature is not valid. Especially >>>> when I try to read the signatures date - it's null. >>> >>> iText does not yet fully support PAdES part 4 document time stamps, it >>> generates them but cannot verify them: It finds them but treats them as >>> regular CMS style document signatures. As RFC 3161 style time stamps are >>> very much like CMS signatures this works to a certain degree. But as both >>> the document hash and the time reference are coded in different fields in >>> these styles, the hash value verification fails and the time stamp time >>> cannot be read. >>> >>> If I understood his posts correctly, Paulo started working on PAdES document >>> time stamp verification late December. As long as this kind of verification >>> is not explicitly requested by some paying client, though, it surely is not >>> a high priority project. >>> >>> Regards, Michael >>> >>> -- >>> View this message in context: >>> http://itext-general.2136553.n4.nabble.com/want-to-verify-a-pdf-signed-by-timestamp-tp4327813p4333631.html >>> Sent from the iText - General mailing list archive at Nabble.com. >>> >>> ------------------------------------------------------------------------------ >>> Try before you buy = See our experts in action! >>> The most comprehensive online learning library for Microsoft developers >>> is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, >>> Metro Style Apps, more. Free future releases when you subscribe now! >>> http://p.sf.net/sfu/learndevnow-dev2 >>> _______________________________________________ >>> 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 >> >> >> ------------------------------------------------------------------------------ >> Better than sec? Nothing is better than sec when it comes to >> monitoring Big Data applications. Try Boundary one-second >> resolution app monitoring today. Free. >> http://p.sf.net/sfu/Boundary-dev2dev >> _______________________________________________ >> 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 > > ------------------------------------------------------------------------------ > Better than sec? Nothing is better than sec when it comes to > monitoring Big Data applications. Try Boundary one-second > resolution app monitoring today. Free. > http://p.sf.net/sfu/Boundary-dev2dev > _______________________________________________ > 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 ------------------------------------------------------------------------------ Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev _______________________________________________ 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
