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RE: PDF Files and Copyright

From: Jon Hanna <jon@spinsol.com>
Date: Tue, 4 Sep 2001 10:26:53 +0100
To: <w3c-wai-ig@w3.org>
Message-ID: <NDBBLCBLIMDOPKMOPHLHIEFMDHAA.jon@spinsol.com>
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> It is marginally more difficult to copy and paste PDF content 
> that has been
> secured that has been secured than it is
> HTML, but only marginally.
> I wrote asking how to do this at the time, without any successful 
> response.
> Please if you know how to do this do tell.
> A trawl of the net and various groups produced no result.

I believe there are tools out there but they would possibly breech
the DMCA.

As a general rule about ways to prevent copying while allowing
viewing:
If you want to stop the average computer user copying something it's
pretty easy.
If you want to stop a technically minded user copying it's hard.
If you want to stop a hacker it's very hard and probably not possible
with pure-software solutions.
If you want to stop a commercial (legal or illegal) interest it's
impossible.

Once one of the above groups can copy the techniques trickle down
from mafia etc. -> hackers -> techies -> "normal" users.

As an example, DVD players for Linux were developed by hackers and
are currently moving from the techies to the "normal" users.

If you really want to prevent something from being copied you should
either not distribute it electronically or else rely on the law to
protect your copyright (tapes and CDs have been easy to copy for
years, but the Music Industry still makes billions).

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Received on Tuesday, 4 September 2001 05:24:21 GMT

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