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Q I want to make splittone images in Adobe Photoshop with Duotone. But after applying a Duotone (Image > Mode > Duotone), why are the only options for saving the files PSD, EPS, PDF, RAW and Large Document Format (PSB)?
C.M. Dulaney
via email
A Duotone is a color mode, like RGB or CMYK, used primarily for printing on a two-color press (you can also make tritone and quadtone images, with three and four colors, respectively). Some photographers like to use Photoshop's Duotone mode to give images a split-tone look, but it is now easier to create a split-toned image in Adobe Camera Raw. For one thing, Duotone requires you to begin with a grayscale image, and the file can't be saved as a JPEG.
If you still want to use Duotone to add tone to your images, this is the workflow to employ:
1. Convert the image to black-andwhite using Photoshop's b&w filter (or a plug-in) to get a good conversion.
2. Switch...