Preserving spot color information in linked files, esp. when exporting as .pdf/.eps
I'm working with a client file that was built in InDesign, and uses linked graphics from Illustrator. The Illustrator graphics are built with spot colors. It seems like placing the image in InDesign is converting the graphic to process colors, rather than preserving the spot color information. When I export the graphic to somethng that my RIP can recognize that should also preserve spot colors (.pdf. .eps), it's a process color. Compounding this, the specific spot colors are not available in InDesign as swatches, but are avilable in Illustrator.
So, can anyone tell me what's going on, and how to keep the spot color information in the linked graphics?
