How do I set up mask files for foil printing?

1) Identify the text or logo areas for foil in your CMYK artwork. 2) Create a separate black-and-white vector mask file the same size as your artwork, with the foil areas in solid 100% K black and everything else white. 3) Check that the mask lines up with your artwork, then remove the CMYK elements under the foil areas so the foil sits on a solid background. 4) Name files clearly: File-Name-Front-CMYK, File-Name-Front-Mask, File-Name-Back-CMYK, File-Name-Back-Mask. See the foil file setup guide.