How should I prepare files for gold foil printing?

For gold foil printing, supply two elements: a black mask layer marking where the foil applies, plus a separate 4-color (4C) print file for the front and back.

• The black mask shows the foil areas. The 4C file carries your full-color artwork.
• A file rep reviews everything and provides a digital proof.
• If there is any issue with file setup or registration, the rep contacts you by email.
• Approve the proof before the job moves to production.