Source Space: Proof vs Document in profiled workflow

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Posted By
Flycaster
Nov 13, 2003
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542
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Below is a response I received from Ian Lyons last night in the Adobe Forums. The bottom line is both methods *will* give identical results, but the link to Bruce Fraser’s latest write-up of this issue may offer the best explanation yet of why one method may be preferable over the other. FWIW, I also spoke with an Adobe PS tech today who said the explanation offered by Bruce can be treated as "gospel" on this issue, since they gave him the information. He ended by saying that he and other techs have tried to explain this to Jon Cone and others, without apparent success.

"Kirk,

We have read several experts who contradict each other on this >issue,
yet the results *seem* to be identical to the "other" >principal method, namely convert to profile, then use Source >Space:Document and Print Space:Same as source.
Simply doing as you describe both options should produce the same result. Leaving the conversion to the print driver has the advantage of preventing the less than switched on user screwing their images becasue they not only coverted the image to a printer profile but also saved it. You don’t want to know the number of folk who email me with "how do fix this mistake" type questions!

So to answer your question: Whilst you description of the softproof method is useful it wasn’t necessarilly the original intent. This method is intended to allow you to cross render your prints i.e. make proof prints. Say you only had an Epson 2200 but your final output was to be a Lightjet or SWOPP Press (in fact any printer other than a 2200). With this feature you can use your 2200 as a let’s pretend XYZ printer. If you read the section towards the bottom of the following page you should get the idea.

http://www.creativepro.com/story/feature/15310-2.html

It’s a VERY useful feature!"

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B
bhilton665
Nov 14, 2003
From: "Flycaster"

The bottom line is both methods *will* give identical results

Thanks for all the digging on this.

In "Real World Color Management" Fraser spends several pages talking about this topic (pg 351-355) and after reading it carefully I came to the same conclusion, that both ways will work and they should give identical results.

Even the Adobe Help file makes sense if you assume "colors as interpreted by the profile currently assigned to the document" can include the soft proof profile and not just the working space, which is what I originally thought.

Bill

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