Printing duotones

Photoshop lets you create monotones, duotones, tritones, and quadtones. Monotones are grayscale images printed with a single, nonblack ink. Duotones, tritones, and quadtones are grayscale images printed with two, three, and four inks. In these types of images, colored inks are used to reproduce tinted grays rather than different colors. This section uses the term duotone to refer to duotones, monotones, tritones, and quadtones.

Related Subtopics:

About duotones
Modifying the duotone curve
Specifying overprint colors
Saving and loading duotone settings
Viewing individual printing plates
Printing duotones
Exporting duotone images to other applications