Chapter 18: Duotones and Spot Color

Overview

Most images printed from Photoshop are printed in process colors. Printing presses use cyan, magenta , yellow, and black ink to print color images. Similarly, ink-jet printers deposit ink from cartridges containing CMYK colors. From time to time, however, the occasion arises when you need to create images by using custom color ink systems, either for a specific look or for reasons of economy. Photoshop has two functions that are designed to prepare images for printing by using custom colors: Duotones and spot colors. These systems depend on color information found in the Channels palette.

In this chapter, you ll discover:

• The nature of Duotones

• How to make Duotones, Tritones, and Quadtones work

• How to create spot color channels

• How to print Duotones and spot color