CMYK/RGB conversion

[Combs, Richard]

Christiane Crety wrote:
 
> I know there are also tools that can convert to CMYK after 
> creating the pdf file, but I would really prefer it if the 
> Distiller could take care of it...
> 
> Does anyone know how to keep the original CMYK values in the 
> pdf output? I'm pulling my hair out....

I'm not an expert, but I haven't seen any other responses, so here's my
(limited) understanding of this issue: 

You can't stay in the CMYK color space on a Windows machine because FM
doesn't have its own print engine -- it uses the Windows GDI (even to
"print" to Distiller). That means everything except EPS graphics (and
maybe imported PDFs) is converted to RGB first. 

The conversion from RGB back to CMYK is of necessity not perfect --
although the values you cite strike me as unusually far off. Maybe
someone knows what settings will get you closer. 

But I suspect you really need those post-processing tools you'd prefer
to avoid. :-}

HTH!
Richard


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Richard G. Combs
Senior Technical Writer
Polycom, Inc.
richardDOTcombs AT polycomDOTcom
303-223-5111
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rgcombs AT gmailDOTcom
303-777-0436
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