Exporting duotone images to other applications

To prepare a duotone image for exporting to a page-layout application, save the image in EPS or PDF format (unless the image contains spot channels, in which case you should convert it to Multichannel mode and save it in DCS 2.0 format). Keep in mind that it's important to name custom colors so they'll be recognized by the other application. Otherwise the image won't print correctly--or might not print at all.