[Gllug] Encrypted PDF

[Andy McGarty]

On Fri, 24 Feb 2006 18:25:03 -0000, Richard Jones <rich at annexia.org> wrote:

>
> This is an encrypted PDF file:
>
> http://www.annexia.org/tmp/patent.pdf
>
> (Yes, it's actually a software patent which I was partly responsible
> for .. hiss boo!)
>
> evince (GNOME PDF reader) claims the document is encrypted and
> requires a password which I don't know.  xpdf displays page 1 but it
> seems that pages 2-81 are all blank.  Presumably they're the encrypted
> pages.
>
> Does anyone know if it's possible to crack PDF encryption?  Is it a
> non-serious obfuscation like the passwords on Office documents, or is
> it proper encryption?
>
> Rich.
>
You sure its just not corrupted?

Andy


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