RE: PDF modifications?
From: Dawes, Rogan (ZA - Johannesburg) (rdawes@deloitte.co.za)Date: 05/17/02
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From: "Dawes, Rogan (ZA - Johannesburg)" <rdawes@deloitte.co.za> To: "'Valdis.Kletnieks@vt.edu'" <Valdis.Kletnieks@vt.edu>, "Dawes, Rogan (ZA - Johannesburg)" <rdawes@deloitte.co.za> Date: Fri, 17 May 2002 17:02:50 +0200
My mistake. See http://www.foolabs.com/xpdf/cracking.html
But, nonetheless, it is simple to make the mods, I'm sure.
Rogan
> -----Original Message-----
> From: Valdis.Kletnieks@vt.edu [mailto:Valdis.Kletnieks@vt.edu]
> Sent: 17 May 2002 02:51
> To: Dawes, Rogan (ZA - Johannesburg)
> Cc: 'Sumit Dhar'; Kurt Seifried; bad bob; vuln-dev
> Subject: Re: PDF modifications?
>
>
> On Fri, 17 May 2002 08:14:18 +0200, "Dawes, Rogan (ZA -
> Johannesburg)" said:
>
> > If the PDF is openable and viewable, but is "protected", so
> that you can't
> > select or print or annotate, that is easily bypassed with almost any
> > non-Adobe PDF viewer, such as xpdf, which simply elects not
> to honour that
> > setting in the PDF. The data is all there, because you can
> view it, it is
> > simply a case of the software choosing to not let you
> select it. Find some
> > software that doesn't honour those document settings, and
> you are on your
> > way.
> >
> > As I recall, there was some discussion about this issue on
> the xpdf lists,
> > or somewhere, about whether xpdf should honour the document
> requests or not,
> > but it is really moot, since the source is there, just
> modify it to suit. I
> > think that was the conclusion by the xpdf developers, so
> they simply didn't
> > bother honouring the setting.
>
> This must have been pre-DMCA. I would recommend that the xpdf
> developers not visit the US, lest they be Skylarov'ed.
>
> (The vuln-dev connection? Consider why Alan Cox censored a
> Linux kernel
> changelog - but further discussion should probably be moved
> to a political
> list. If you're in the US and of voting age, contact your
> Congresscreature
> and tell them you want them to support Rep. Rick Boucher (D-VA) in his
> attempts to fix the anti-circumvention clause of the DMCA).
>
> We now return you to your regularly scheduled vuln-dev
> discussion, which
> may be in violation of the anti-circumvention clause....
> --
> Valdis Kletnieks
> Computer Systems Senior Engineer
> Virginia Tech
>
>
>
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