I have several RGB images that I have to convert to CMYK for a paper submission. I have a Photoshop Elements 9 license but it doesn't support CMYK.
I remember having tried with ImageMagick on Linux but never managed to generate a result with the same colors. Last time I sent the files to a friend with a Photoshop license to convert.
Is there a free or cheap tool on Mac OS X, Linux or Windows that will allow me to do the job?