Is it better to work with images on RGB or CMYK format?
The answer may vary according to the usage and how effortless the work is. Its important no to change the space color many times. If the images have a RGB format, its more suitable to let them that way, because when printing, the necessary changes will be made according to each machine. However, several RGB images have colors that cannot be printed. Thats why theyre turned into CMYK format in order to see what colors are going to be printed indeed. Anyhow, its very important to add the color profile to the image for the transformation and to reproduce the most reliable color at the moment of printing.