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[liberationtech] Auto expiring document/files & 'rights to be forgotten'

Frank Corrigan email at
Thu Jan 26 09:27:47 PST 2012

Thanks I thought as much, but lets say the threat model does not involve
those with the capacity to circumvent DRM? 


----- Original message -----
From: "Meredith L. Patterson" <clonearmy at>
To: "Frank Corrigan" <email at>
Cc: liberationtech at
Date: Thu, 26 Jan 2012 12:20:35 -0500
Subject: Re: [liberationtech] Auto expiring document/files & 'rights to
be forgotten'

What you are asking is impossible, whether open-source or proprietary.
Give up now and save yourself the effort, heartbreak and pain.


On Thu, Jan 26, 2012 at 11:08 AM, Frank Corrigan
<email at> wrote:
> Does anyone know of any free resource that can make a PDF document, for
> instance, inaccessible after a certain data, Most Digital Rights
> Management (DRM) software prices are too prohibitive to make them a
> practical solution to individuals.
> This request is being prompted by a desire to find a practical way to
> use rights to be forgotten, such as the new European Data Protection
> proposals on
> Of course there are ways to overcome document based DRM, but an open
> source version could be useful to at least add a layer of privacy
> protection to documents shared online, particularly when they contain
> personal identifiers that unwittingly could become a risk to individuals
> at a later date.
> Frank
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