You have an RGB image that you want to convert to a duotone, but in the image > Mode menu, the Duotone option in grayed out. Why is this happening?

You must add a spot color channel first
You must remove all existing color by Image > Adjustments > Desaturate first
Duotones require a single channel, so you must convert to grayscale first
Duotones require two channels, so you must delete one of RGB channels in the Channels panel first

Leave a Reply

Your email address will not be published. Required fields are marked *