Thanks Richard - I was afraid that would be the case! I guess I was just hoping there would be some magic Distiller setting that could bring back my CMYK ;-) At least I would think that an "absolute" color like black should be easily converted to RGB and back to CMYK. When I select "Leave color unchanged" in the Distiller the RGB color is R=0%, G=0%, B=0% as it should be - so it is the conversion back to CMYK that I can't get right...
What I don't understand is how other people cope with this? There must be at least a million people out there who need to deliver "all CMYK" documents to their print shop? Best regards, Christiane -----Original Message----- From: Combs, Richard [mailto:richard.co...@polycom.com] Sent: 7. november 2006 19:16 To: Christiane Crety (CC); Framers at frameusers.com Subject: RE: CMYK/RGB conversion 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 ------ Richard G. Combs Senior Technical Writer Polycom, Inc. richardDOTcombs AT polycomDOTcom 303-223-5111 ------ rgcombs AT gmailDOTcom 303-777-0436 ------