On Jan 6, 2010, at 4:41 AM, JiHO wrote:
If I do need to convert in CMYK, I explored the possibilities. The SVG does not import correctly in Scribus so this is out of the question. I have Adobe Acrobat, which looks like it can do the conversion on the PDF. I am just not sure what it assumes as a starting colour space, if any. What would the knowledgeable people on this list advise as a workflow to get an Inkscape generated PDF in CMYK?
For the rgb work, Inkscape follows the SVG standard and uses sRGB as the colorspace. That should give you a starting point there. (sRGB and Adobe RGB are the two most common rgb colorspaces).
As a related note, what is the advised workflow within Inkscape? I have a display and proofing profiles set in the preferences (NB: Jon, does the "Retrieve profile from display" works on Mac? It does not inactivate the drop down menu when checked at least, while it looks like it should.). My understanding of the 0.46 release notes is that as soon as a display profile is set, it is used, and clicking the indicator at the bottom-right corner turns soft proofing on, using the specified proofing profile. Am I right? What part of all this is currently retained in the SVG? in the PDF?
Retrieving the profile from the display fetches a profile attached to the X11 display via xicc.
With 0.46 and 0.47 you would need to link a color profile into the document you were working on (manually in the case of 0.46) and then only change colors via the "CMS" color picker. This preserves the separate CMYK values in icc-color() in the XML.
Unfortunately the development version of Scribus is the only other software I am aware that respects the icc-color() settings.