Online printers and publishers scan your book cover files with specialized preflight software. It checks for anything that may cause problems in the printing process. If their check detects RGB color mode instead of CMYK, the file may be rejected. Or, if it is used, your printed cover may not meet your expectations. What is CMYK? CMYK is the color mode used in four color process printing. It stands for Cyan, Magenta, Yellow and Black. These are the four standard … Continue reading Book Cover Design: CMYK vs RGB