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From: "Hartmut Henkel" <hartmut_henkel@gmx.de>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>, ntg-context@ntg.nl
Subject: Re: OT: Pdf info
Date: Wed, 20 Jul 2011 14:02:00 +0200	[thread overview]
Message-ID: <20110720120200.199120@gmx.net> (raw)
In-Reply-To: <CAG5iGsDvOkZXCGNo=O+FS9rK+kZWO_EgUUjovGgQT=GknrZ2Sw@mail.gmail.com>

> 2011/7/20 Procházka Lukáš Ing. - Pontex s. r. o. <LPr@pontex.cz>:
> > Hello,
> >
> > this question in not straightly related to Context, but Context users
> may
> > have solved it and Ctx may be used to solve it.
> >
> > I would need to get the following information from .pdf file(s):
> >
> > - number of pages,
> > - common width and height of pages (provided that they are the same;
> > otherwise the dimension can be e.g. zero).
> >
> > The final goal is to use Ctx as a .pdf joining engine - to provide this,
> I
> > need to know whether the .pdf to be inserted is portrait or landscape
> > oriented, what is its size (so if to be scaled or not) etc.
> >
> > So Lua inside Ctx may be used to get the required .pdf info, if
> necessary.
> >
> > If an external program was used, it should be non-interactive
> (command-line
> > oriented), free and working under Windows.
> >
> > Does anyone have any experience with such a task?
> You can use some macros (see Taco), and for external programs
> google for  mupdf and  xpdf
> 
> Tthe lua pdf library with mkiv should be also useful, but I've still
> to play with it.

luatex's epdf library (= poppler Lua bindings, maybe that's what Luigi meant) allows to extract all this info from a pdf file, with a bit of Lua programming.

Regards, Hartmut
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  reply	other threads:[~2011-07-20 12:02 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-20 11:21 Procházka Lukáš Ing. - Pontex s. r. o.
2011-07-20 11:27 ` Taco Hoekwater
2011-07-20 11:29 ` luigi scarso
2011-07-20 12:02   ` Hartmut Henkel [this message]
2011-07-20 12:11     ` luigi scarso
2011-07-20 12:26     ` Procházka Lukáš Ing. - Pontex s. r. o.
2011-07-20 12:53     ` Hans Hagen
2011-07-20 13:04       ` Procházka Lukáš Ing. - Pontex s. r. o.
2011-07-20 12:54   ` OT: Pdf info (solved) Procházka Lukáš Ing. - Pontex s. r. o.

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