Someone asked to me how to convert a RGB pdf generated by LibreOffice(1) to CMYK and well... I have no idea. Googling for this I found that there are several windows programs (some free —"as in beer", none of them "as in speech"—, many not) but I cannot find something for KDE nor even for Linux in general. Any suggestion?
I'm aware that colour space conversion is a tricky (just to be nice) problem that imply colour management and colour profiles...


(1) LibO and OOo only generate RGB output: if you insert CMY images or define CMY colours they will be converted to RGB

Have you tried PublishCYMK?
http://linux.softpedia.com/get/Multimed ... 5339.shtml

Thanks for the suggestion, I'll pass the link. If someone else have more options, they are welcomed too