[pdftex] Encryption, passwords and so on.

Robin Fairbairns Robin.Fairbairns at cl.cam.ac.uk
Thu Jan 17 13:44:33 CET 2008

Ulrich Drepper <drepper at redhat.com> wrote:

> Martin Heller wrote:
> > pdftk <http://www.accesspdf.com/pdftk/>
> Back when encryption was removed I grudgingly agreed that this is a
> valid method and I let my patch for embedded encryption in pdftex
> deteriorate.
> But since then I've found this is not the case anymore.  pdftk doesn't
> know about object compression.  I have documents which benefit
> significantly from pdftex supporting this.  If I want to to also have
> encryption I have to allow pdftk to rewrite the file and see the file
> expand significantly.
> I'm thinking about updating the encryption patch on my home page to add
> back the support.  Relying on a toolchain with components which are not
> sufficiently well maintained proved not to be viable.

is a pdftex that encrypts part of a document "acceptable", then?
(that's why, i understood, that encryption was removed from the
distribution -- the distributed encryption only applied to pdftex's own
streams, not to included ones.)


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