Leonard Rosenthol-3 wrote > PAdES isn't relevant for Certification signatures - it only applies to > standard "approval" signatures.
In that case would you care to explain why the PAdES specification does refer to MDP signatures? E.g. in part 4: > NOTE: ISO 32000-1 [1], 12.8.2.2, discusses the DocMDP (Modification, > Detection and Prevention) feature whereby a set of permissions can be > associated with a PDF in conjunction with a certification signature. The > permissions of DocMDP are present in the P key of the DocMDP transform > parameters dictionary, as an integer in the range 1 through 3. Values of 2 > and 3 allow for additional signatures to be included after the > certification but a value of 1 does not allow any change so allow Document > Time-stamps. This provision will need to be changed from that in ISO > 32000-1 [1], to allow for the inclusion of LTV, including DSS and Document > Time-stamps This BTW was what I had in mind when I wrote >This, by the way, is not correct anymore as soon as you take PAdES (and, if >I understand leonard right, iso 32000-2) into account. In those cases LTV >additions according to PAdES part 4 are allowed even in case of >certification signatures of any kind. Admittedly, though, the specification there only talks about specifications which will have to be changed. I have no idea how PDF-2 actually is changed in that respect. Regards, michael -- View this message in context: http://itext-general.2136553.n4.nabble.com/Verify-certified-with-transform-method-DocMDP-signatures-tp4300147p4301877.html Sent from the iText - General mailing list archive at Nabble.com. ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! 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-d2d _______________________________________________ iText-questions mailing list [email protected] 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
