Re: embedded profiles in PDF/Postscript
Re: embedded profiles in PDF/Postscript
- Subject: Re: embedded profiles in PDF/Postscript
- From: Graeme Gill <email@hidden>
- Date: Mon, 07 Jun 2004 13:01:41 +1000
- Organization: Color Technology Solutions
Roger Breton wrote:
Yes, that is fine and dandy but this really leaves me on my appetite for
color management leadership. So the real color hero of the PDF/X standard is
PDF/X-3 because in X/3 the CMYK OutputIntent must be specified and will be
used to carry the final CMYK separations.
My understanding is that the destination profile is not embedded in the PDF in any
standard "color profile" way, but is embedded in the PDF Meta Data. It's certainly
possible to write tools that work with this convention, but it's not a standard
in the same sense as images in the PDF itself, being tagged with their colorspace.
In addition, the ICC registry isn't very useable as a way of nominating
an immediately accessible output profile. The ICC registry consists of a
(human readable only) list of contact information, which indicates who to contact to
obtain the required color information (possibly for a fee). It's certainly
far from something like a repository of ICC profiles that could be automatically
downloaded by an application wanting to resolve a registry reference.
Graeme Gill.
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