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Subject: [bug#39674] [PATCH] enable PostScript backend in Evince
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From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@gnu.org>
References: <1582114083.2225.0@riseup.net>
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Date: Wed, 18 Mar 2020 11:02:30 +0100
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 ("=?UTF-8?Q?Nicol=C3=B2?= Balzarotti"'s message of "Wed, 19 Feb 2020
 13:27:42 +0100")
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To: =?UTF-8?Q?Nicol=C3=B2?= Balzarotti <anothersms@gmail.com>
Cc: 39674@debbugs.gnu.org, raingloom <raingloom@riseup.net>, guix-security@gnu.org

Hi Nicol=C3=B2 & raingloom!

(+ Cc: guix-security)

Nicol=C3=B2 Balzarotti <anothersms@gmail.com> skribis:

> Thanks!
>
> I was wondering why it could not open .eps files!  I tested the patch,
> applies, build and now I can open them.  guix size reports +3%
> (1009.6 -> 1038.0).
>
> +1 for merging

I think PostScript support is often disabled by default because of
security issues: PostScript is a very versatile language and Ghostscript
has had a series of problems due to its inability to =E2=80=9Csandbox=E2=80=
=9D
PostScript code.

A particularly important issue is thumbnail generation: you could find
yourself running PostScript code without explicitly opening a file.

FWIW, I resort to gv (or ps2pdf) when I need to open a PostScript that I
deem trustworthy.

Leo, Mark, WDYT?

Thanks,
Ludo=E2=80=99.