RE: PDF modifications?

From: Dawes, Rogan (ZA - Johannesburg) (rdawesat_private)
Date: Fri May 17 2002 - 08:02:50 PDT

  • Next message: Joćo Sobral: "RE: PDF modifications?"

    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.Kletnieksat_private [mailto:Valdis.Kletnieksat_private]
    > 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
    > 
    > 
    > 
    



    This archive was generated by hypermail 2b30 : Fri May 17 2002 - 09:23:00 PDT