I am submitting a paper to a conference in a few days and just noticed they require all images to be in CMYK color space. Is there a quick easy way to check if they are?
And if they are not, is there a quick easy way to convert them to CMYK, preferably via PDFlatex or another Latex component (best) or via a batch utility (good) or something so I don't have to do it manually (bad). If a batch is the solution, I'd like to be able to take a copy of my working folder tree, point a batch utility at it, and have it convert everything therein to CMYK if it's not already.
My images are mostly jpeg, but I think I might have some PNGs as well.