* PDF Transparency and ConTeXt
@ 2013-09-29 4:59 Thangalin
2013-09-29 7:48 ` Hans Hagen
2013-09-29 13:34 ` Martin Schröder
0 siblings, 2 replies; 4+ messages in thread
From: Thangalin @ 2013-09-29 4:59 UTC (permalink / raw)
To: mailing list for ConTeXt users
Hi,
I have written up a question on TeX.SE:
http://tex.stackexchange.com/questions/135543/pdf-colour-space-and-context
Aditya mentioned that the problem with transparencies is that it is
likely a known bug with Adobe Acrobat Reader: "I remember similar
questions being asked in the past, and the conclusion was that it was
a known bug in Adobe Reader."
Has anyone else come across this issue and found a way to resolve it in ConTeXt?
I ran into what I think is a similar issue with LaTeX and was able to
resolve it using the following command in the preamble:
\pdfpageattr{/Group << /S /Transparency /I true /CS /DeviceRGB>>}
I have not yet tried to reproduce the problem in either LuaLaTeX or LaTeX.
Kindest regards.
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^ permalink raw reply [flat|nested] 4+ messages in thread* Re: PDF Transparency and ConTeXt
2013-09-29 4:59 PDF Transparency and ConTeXt Thangalin
@ 2013-09-29 7:48 ` Hans Hagen
2013-09-29 17:36 ` Thangalin
2013-09-29 13:34 ` Martin Schröder
1 sibling, 1 reply; 4+ messages in thread
From: Hans Hagen @ 2013-09-29 7:48 UTC (permalink / raw)
To: ntg-context
On 9/29/2013 6:59 AM, Thangalin wrote:
> Hi,
>
> I have written up a question on TeX.SE:
> http://tex.stackexchange.com/questions/135543/pdf-colour-space-and-context
>
> Aditya mentioned that the problem with transparencies is that it is
> likely a known bug with Adobe Acrobat Reader: "I remember similar
> questions being asked in the past, and the conclusion was that it was
> a known bug in Adobe Reader."
>
> Has anyone else come across this issue and found a way to resolve it in ConTeXt?
>
> I ran into what I think is a similar issue with LaTeX and was able to
> resolve it using the following command in the preamble:
>
> \pdfpageattr{/Group << /S /Transparency /I true /CS /DeviceRGB>>}
>
> I have not yet tried to reproduce the problem in either LuaLaTeX or LaTeX.
\setupcolors[pagecolormodel=auto]
might help
in acrobat, when transparency is used, a different route is followed (at
least in the past) when rendering
also, rendering colorspaces might be adapted to the output medium so
it's a combination of colorspace, monitor/paper, calibration,
knockout/overprint, transparency groups, assumptions etc
in the end, a print on a proper device is the reference
Hans
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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archive : http://foundry.supelec.fr/projects/contextrev/
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^ permalink raw reply [flat|nested] 4+ messages in thread* Re: PDF Transparency and ConTeXt
2013-09-29 4:59 PDF Transparency and ConTeXt Thangalin
2013-09-29 7:48 ` Hans Hagen
@ 2013-09-29 13:34 ` Martin Schröder
1 sibling, 0 replies; 4+ messages in thread
From: Martin Schröder @ 2013-09-29 13:34 UTC (permalink / raw)
To: mailing list for ConTeXt users
2013/9/29 Thangalin <thangalin@gmail.com>:
> I ran into what I think is a similar issue with LaTeX and was able to
> resolve it using the following command in the preamble:
>
> \pdfpageattr{/Group << /S /Transparency /I true /CS /DeviceRGB>>}
This should be done automagically in pdfTeX (at least it once was).
Best
Martin
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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archive : http://foundry.supelec.fr/projects/contextrev/
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___________________________________________________________________________________
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2013-09-29 4:59 PDF Transparency and ConTeXt Thangalin
2013-09-29 7:48 ` Hans Hagen
2013-09-29 17:36 ` Thangalin
2013-09-29 13:34 ` Martin Schröder
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