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Re: soft proofing of spot colours / Adobe / ISO standards

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Re: soft proofing of spot colours / Adobe / ISO standards

Subject: Re: soft proofing of spot colours / Adobe / ISO standards
From: Jan-Peter Homann <email@hidden>
Date: Fri, 01 Feb 2008 15:54:31 +0100

Hello list, hello Graeme

PDF 1.7 is now approved to be ISO 32000. The PDF 1,7 reference as basis for ISO 32000 could be downloaded here: http://www.adobe.com/devnet/pdf/pdf_reference.html

Section 4.5.5 is about DeviceN colorspace incl. several tables about e.g. tint solidity and dotgain. Having a first look over, I havn´t found any informations how this attributes should be rendered to the profile connection space.

But as this attributes are now part of the ISO 32000 it should be possible to ask Adobe to publish together with ISO TC 130 a report, which makes thinks more clear.

Regards
Jan-Peter

Graeme Gill wrote:

Jan-Peter Homann wrote:
I havn´t tested yet, if the opacity-informations and the assigned grayscale ICC-profile are used in Acrobat, but I would expect that it should work. Adobe is very active to promote PDF as an ISO standard and also the ICC-specs are now an ISO standard. So it would make a lot of sense to describe the Adobe model for spotcolor opacity and gradation both in the ISO-standards for PDF and ICC-profiles.
It may make a lot of sense, but I'd be rather surprised if this
were to happen, since such an algorithm is likely to be proprietary
"secret sauce". (This is from the perspective of having created
such an algorithm for the Colorbus RIP :-)
Graeme Gill. _______________________________________________ Do not post admin requests to the list. They will be ignored. Colorsync-users mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: This email sent to email@hidden

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