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From: Peter Rolf <indiego@gmx.net>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Embedding of ICC profiles and preflight
Date: Thu, 01 Sep 2011 17:08:52 +0200	[thread overview]
Message-ID: <4E5FA004.2080900@gmx.net> (raw)
In-Reply-To: <CAG4oGFRFHRG1ELXrMkWAgO70COGA7V9ipF0mvP3KkpQUnQWq7g@mail.gmail.com>

Am 01.09.2011 15:30, schrieb Honza Hejzl:
> Hello,
> I am trying to embed a profile but it doesn't work. I am using:
> 
> \setupbackend
>     [format=PDF/X-1a:2001,
>     intent=Coated FOGRA39 (ISO 12647-2:2004),
>     file=CoatedFOGRA39.icc, 
>     option=always
>     ]
> 
> Acrobat Preflight says it has not profile embedded. Am I doing something
> wrong?
>
Mh, maybe add a comma after 'option=always'? You can also add

\enabletrackers[backend.pdfx]

in front of the \setupbackend command to get additional info in the log.

Is there a reason to force embedding of the profile? If I remember right
PDF/X-1a can do without, if the profile is common.

\setupbackend
    [format=PDF/X-1a:2001,
     intent=Coated FOGRA39 (ISO 12647-2:2004),
     option=always, % for a much bigger document :-)
    ]

should be enough ('file' is derived from the entry in
colorprofiles.xml). A profile with this name should be in the specific
path. See

http://wiki.contextgarden.net/PDFX#ICC%20profiles

for the details. The mentioned $OSCOLORDIR variable is no longer valid.

> The next thing is I am using text smaller than 12pt and nothing helps me
> to prevent ConTeXt to:
> 
> 1) overprint the GRAY text (\setupcolors allows just to set cmyk-gray/rgb);
> 2) knockout text smaller than 12pt, what is not allowed in a good pdf file.
> 
Just guessing (your description rings a bell):

Use '\startoverprint ... \stopoverprint', not the global
'\setupcolors[overprint=yes]'. The latter is only useful, if your
document is pure black text only (everything in it is overprinted)!


Best wishes,  Peter


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  reply	other threads:[~2011-09-01 15:08 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-01 13:30 Honza Hejzl
2011-09-01 15:08 ` Peter Rolf [this message]
2011-09-01 15:24   ` Wolfgang Schuster
2011-09-01 15:40     ` Peter Rolf
2011-09-01 18:42 ` Honza Hejzl
2011-09-01 20:48   ` Peter Rolf
2011-09-01 18:53 Honza Hejzl
2011-09-02  7:12 Honza Hejzl
2011-09-02  8:33 ` Peter Rolf
2011-09-06 17:57 Honza Hejzl
2011-09-07  8:57 ` Peter Rolf

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