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(In reply to Adrian Johnson from comment #79) > + r_values[0] = r2.isInt64() ? r2.getInt64() : r2.getInt(); > + r_values[1] = r3.isInt64() ? r3.getInt64() : r3.getInt(); > + r_values[2] = r4.isInt64() ? r4.getInt64() : r4.getInt(); > > According the PDF Reference, the ByteRange array contains pairs of > (offset,length). > > Why do we ignore the first offset and later assume it is 0? Why do we assume > there are exactly two pairs. > > I only skimmed over the digital signatures section so maybe I missed > something. Actually the PDF spec allows for more than 2 pairs of values in /ByteRange but it would mean that there is more than one gap in the signed data apart from the signature itself. Quoting from ISO 32000-1 section 12.8.1: "This range should be the entire file, including the signature dictionary but excluding the signature value itself (the Contents entry). Other ranges may be used but since they do not check for all changes to the document, their use is not recommended." Obviously in a file with multiple signatures each signature should cover the latest revision present in the file when the signature was appended. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to evince in Ubuntu. https://bugs.launchpad.net/bugs/1085526 Title: ubuntu pdf doc viewer will not let me sign a document Status in Poppler: Confirmed Status in evince package in Ubuntu: Triaged Bug description: Just updated in last few weeks, i think ubuntu 12.4 To sign the document i have to send it to my neighbors windows computer, open it, sign it, then send it, then I get a note from echo sign that the document was sent with my signature. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: evince 3.2.1-0ubuntu2.3 ProcVersionSignature: Ubuntu 3.0.0-27.44-generic 3.0.45 Uname: Linux 3.0.0-27-generic i686 ApportVersion: 1.23-0ubuntu4 Architecture: i386 Date: Fri Nov 30 18:13:25 2012 ExecutablePath: /usr/bin/evince InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1) ProcEnviron: PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: evince UpgradeStatus: Upgraded to oneiric on 2012-11-18 (12 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/poppler/+bug/1085526/+subscriptions
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