Digital printing — which affords mail advertisers almost infinite opportunities for highly persuasive personalization — demands careful preparation. Sylvia Konkel of EU Services of Rockville, Maryland, offers these six tips on digital production: TIFF, EPS, and similar image files work best in digital reproduction. TIFF files take up a lot of computer capacity, but produce higher resolution, with more precise detail and color than JPG and GIF files, which may save capacity bu

Red, green, and blue (RGB) are the primary colors of light. Cyan, magenta, yellow and black (CMYK) are the primary colors of printing. RGB color is used to display on your computer screen. RGB is called additive color. The more light you add the lighter your color becomes. When equal amounts of the RGB primary colors are at their highest level, the resulting color is white. CMYK color is used for printing. Dots of ink are printed on paper for each color: cyan, magenta, yellow