Re: Acrobat 6 and Color Management
Re: Acrobat 6 and Color Management
- Subject: Re: Acrobat 6 and Color Management
- From: Chris Murphy <email@hidden>
- Date: Fri, 23 Jan 2004 14:53:49 -0700
On Jan 20, 2004, at 6:54 PM, Russell Proulx wrote:
The file's CMYK numbers seem to be correct, but Acrobat does not print
them
with the print profile in the same way as PS does... WHY?
I assume this is Acrobat Professional 6.01?
1. The PostScript generated by QuarkXPress does not retain any profile
data, so the resulting PDF is "untagged" unless you have Distiller set
to use the same CMYK profile you are using in Photoshop. [I personally
would not recommend tagging the file this way, but rather create a
PDF/X-1a document which includes an OutputIntent. The OutputIntent
profile gets embedded and is treated for proofing purposes as a source
profile, but is a non-committing source profile when printed (i.e. your
CMYK content is still considered device-dependent, not ICCBased).]
2. If the PDF is untagged Acrobat uses it's Preferences>General>Color
Management CMYK working space as the assumed source profile for all
CMYK content in your PDF. If there is an OutputIntent, or the PDF
contains embedded profiles for CMYK objects, those are used instead.
3. In the print dialog box, you need to hit the Advanced button, to get
the Advanced Print Setup dialog. There is a Printer Profile pop-up menu
you need to set to your inkjet printer profile (same as what you select
in Photoshop's Print With Preview dialog). You do not get rendering
intent control. Make sure "Apply Working Color Spaces" is checked also.
Chances are, the defaults are the cause of the problem. The Acrobat
team has this obsession with PostScript Color Management, and in
combination with the Apply Working Color Spaces check box being turned
off by default, you're pretty much guaranteed a mess unless you have
made all of the requisite sacrifices to the color management gods for
the past 10 years.
Chris Murphy
Color Remedies (TM)
www.colorremedies.com/realworldcolor
---------------------------------------------------------
Co-author "Real World Color Management"
Published by PeachPit Press (ISBN 0-201-77340-6)
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