Export only used Seperations?

[cbishop01]

I may not be wording this correctly. But my issue is that when we export a PDF with lets say K, PMS-110, PMS-3145. it will export those colors as well as C, M, Y. how can i automatically eliminate the Unused Separations on Export? so instead of getting C, M, Y, K, 110, 3145 — i get K, 110, 3145. we have thousands of files all with different colors in them.

[rob day · Accepted solution]

how can i automatically eliminate the Unused Separations on Export?

You can't. Documents with spot colors always export with the spots plus CMYK. You can setup a Preflight rule that will flag any CMY usage:

[BobLevine]

And you can simply tell the printer to ignore and empty plates. They should of course know this but it never hurts to inform them in advance.