I have been discussing a decryption problem with a few folks lately. All Linux pdf viewers that I have used, Evince included, have been unable to decrypt my attached pdf file. It requires a user name and password. It requires a connection to a server, something like ebooks.careeredonlin.edu, and then I can read it for a while. As of now only Windows + Adobe Reader can do this task, that I know of. AR 8.x seems to work with Windows. I e-mailed the Glyph and Cog team that owns xpdf, about xpdf not being able to do this. Here is our correspondence: I may have discovered a bug, that your team would like to be aware of. I have attached a sample file that I have been unable to decrypt using xpdf on Linux. I can decrypt this using my user name and password on a windows computer using Acrobat Reader and only under that combination. The functionality I have been unable to realise is to connect with ebooks.careeredonline.edu, or something like that, and then decrypt like AR does on windows. A similar bug has been found recently with the windows version of AR while running on winehq. Thank you for your wonderful product, Justin Hale justin methuselah:~$ uname -a Linux methuselah 2.6.27-9-generic #1 SMP Thu Nov 20 21:57:00 UTC 2008 i686 GNU/Linux justin methuselah:~$ xpdf Desktop/information-security-principles-and-practices/chapter-1-why-study-information-security.pdf Error: Couldn't find the 'Adobe.APS' security handler XtUngrabButton(drawArea,3,0) Warning: Attempt to remove nonexistent passive grab And the response: Adobe.APS is a custom security handler (i.e., decryption plugin for Adobe Reader). It's not openly documented, so there's no way for Xpdf to implement it. - Darek Now my question is if there really is some way around this problem or is the problem just to big to fix at the moment? I have also made a couple of postings to Adobe's website. I'm awaiting their response on the matter. A bug report has been filed for Acrobat Reader 8.x for Window using WINE. ~~ Justin Hale
Attachment:
chapter-1-why-study-information-security.pdf
Description: Adobe PDF document
SOAP 1.1 fault: "http://xml.apache.org/axis/":Client [no subcode] "No such operation 'invoke'" Detail: <ns2:hostname xmlns:ns2="http://xml.apache.org/axis/";>EDC-AdobePS01</ns2:hostname>