I worked in an art department for ten years. A common thing I would see when checking out digital picture files is the images were submitted in the wrong color mode – RGB (which stands for red, green, and blue). When submitting files to a commercial printer, images should be converted to CMYK (which stands for cyan, magenta, yellow and key/black).
This is such a common occurance so I decided to create a video that explains how to convert from RGB color mode to CMYK color mode in Photoshop.
When adjust the image in Photoshop, the colors will shift and look flat after converting to CMYK. I will show you how you can solve this problem so your image looks good again and is ready to send to the printing press.