Re: Re(6): embedded profiles in PDF/Postscript
Re: Re(6): embedded profiles in PDF/Postscript
- Subject: Re: Re(6): embedded profiles in PDF/Postscript
- From: Peter Kleinheider <email@hidden>
- Date: Thu, 24 Jun 2004 17:38:31 +0200
Hi Doug
This also applies to CMYK images.
If you have a tagged CMYK-TIFF loaded into XPress and QuarkCMS is
active, then you should be concerned since this CMS is not doing a good
Job ( or I haven't found how to set it up correctly).
You don't need to be concerned if you trash the QuarkCMS XTension
Peter
Am 24.06.2004 um 17:17 schrieb Doug Walker:
On Sunday, June 6, 2004, at 04:08 PM, Chris Murphy wrote:
ICC profiles do not exist in a PostScript stream. They get converted
to PostScript CSA's. So to do this, you'd be asking for a less than
high quality conversion asking the PostScript interpreter to convert
from CSA tagged RGB to a CRD destination; and then once it's
normalized to PDF to get tagged properly with the originally ICC
version (from which the CRD was created). I don't think this is a
particular useful workflow myself, and I think Adobe probably
disregarded it as well because it makes very device dependent PDFs
which Adobe tries to avoid unless it's one of the PDF/X-s.
If you want something like this, the solution is to tag everything or
tag only images. Any CSA's get converted to ICC profiles and tag
those objects. At print time, you select the destination profile and
at that time content is converted to CMYK. InDesign's PDF export will
also do what you are asking, and it's easier there just because there
is no distillation process. Everything stays PDF, in an ID PDF
export, there is no PostScript.
Chris,
Is the statement above ONLY referring to RGB files and NOT CMYK files
or both?
If a Quark 6.0 document containing CMYK images tagged w/ the profile
(US WEB Coated SWOP v2) gets exported to Postscript, and you say ICC
profiles do not exist in a PostScript stream......I am wondering if I
send tagged CMYK TIF files to Quark 6.x documents if I need to be
concerned.
Thanks for clarifying.
Doug Walker, FP
"Specializing in Corporate People in their Workplaces in a Clean, Bold
Classic Style!"
website: http://www.walkerphoto.com
Phone (360) 943-1293
Member, ASMP, APA SF
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