Inside Photoshop

Create a spot channel from an alpha channel in a snap (CS4/CS5/CS6/CC/CC 2014)

Inside Photoshop

by Amy Palermo

If you’re printing with spot colors along with or instead of 4-color inks, you’ll probably need to designate spot channels in one or more of your Photoshop files. You can do so in a number of ways, one of which is to convert an alpha channel into a spot channel.

To convert an alpha channel into a spot channel:

  1. Double-click on the alpha channel in the Channels panel.
  2. In the resulting Channel Options dialog box, select the Spot Channel radio button.
  3. Click on the color swatch to open the Color Picker, and then click the Color Libraries button to access your color libraries.
  4. Set the color options to suit your needs and click OK.
  5. Click OK in the Channel Options dialog box.

Subscribe to Inside Photoshop

(get full access to archives and more)