[poppler] (no subject)

Albert Astals Cid aacid at kde.org
Thu Aug 8 11:17:54 PDT 2013

El Dijous, 8 d'agost de 2013, a les 04:45:35, Yury G.  Kudryashov va escriure:
> shravan setty wrote:
> > Hi,
> > 
> > I would like to use Poppler - PDFtoCairo to convert pdf documents to
> > jpegs. I am interested in knowing the licensing information for commercial
> > use. It would be great if you can provide me some information on it.
> Disclaimer: I'm neither a poppler developer nor a lawyer. If my
> interpretation below is incorrect, I hope that one of the devs will comment.
> Poppler is licensed under GPLv2+. 

That's not correct, it's either GPLv2 or GPLv2+GPLv3 (depending who you ask), 
but never GPLv2+


> Basically, this means the following:
> - If you link to libpoppler, then your executable must be GPLv<n>, n >= 2.
> In particular, if you distribute the binary, you should provide the full
> source code on request.
> - If you distribute a modified version of libpoppler, then you must provide
> all your patches on request.
> - If you distribute an unmodified version of libpoppler with or without
> utils, then you should tell users that this utility is GPLv2+ and they can
> obtain source code from poppler.freedesktop.org.
> - If you just use one of the utilities (pdftocairo or any other) for any
> purpose (commercial or non-commercial) on your own servers, then just use
> it.
> There are some corner cases like using a modified version of pdftocairo
> inside a web-app. As far as I know, in this case you may hide your patches
> but it is better to send them upstream.
> P.S.: Learn to use Subject: header in e-mail.

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