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From: "Martin Schröder" <martin@oneiros.de>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: PDF Digital Signatures
Date: Tue, 20 Mar 2012 23:37:58 +0100	[thread overview]
Message-ID: <CAP7DCDdZOBb5Wy-dkjtJ2Pos1GYP4gePs5AhAEmAdvagv9e2Dw@mail.gmail.com> (raw)
In-Reply-To: <CALBOmsbB62kjmPQ9jdccykrxABHBdvQ1NTuE918_XM4rPr7xQA@mail.gmail.com>

2012/3/20 Mojca Miklavec <mojca.miklavec.lists@gmail.com>:
> If qpdf exists it is probably not a legal issue to do password protection then.

Of course.

> But from the same perspective ... one first needs PDF to be (almost)
> finished before being able to sign it. One needs to read as-good-as
> the whole PDF, read the certificate from somewhere on the disk and
> then sign with that certificate. If certificate is password-protected,
> one also needs to provide the password somehow.

You can technically sign only parts (IIRC streams) of a PDF.

> government. On the other hand they could just as well have used some
> standard tool and it would work out of the box. So much about signing
> ...

gpg is free. So is jpdfsign.
See also http://wiki.cacert.org/PdfSigning

Best
   Martin
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  parent reply	other threads:[~2012-03-20 22:37 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-19  9:27 Andreas Schneider
2012-03-19 15:41 ` Mojca Miklavec
2012-03-19 16:28   ` Andreas Schneider
2012-03-19 16:51   ` luigi scarso
2012-03-19 21:08     ` Mojca Miklavec
2012-03-19 22:12       ` Hans Hagen
2012-03-20 19:23         ` Mojca Miklavec
2012-03-20 19:27           ` Hans Hagen
2012-03-20 21:25           ` Michael Hallgren
2012-03-20 22:37           ` Martin Schröder [this message]
2012-03-19 21:30   ` Hans Hagen
2012-03-19 18:53 ` Kip Warner

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