When providing art files in which you want to include Foil Stamping and/or Spot UV there are special requirements (with us or any other printing company).
The potion of your are file that you want to be foil stamped or have a high-gloss spot UV applied needs a “Vector Mask” plate, which is a separate art file (or layer in your art file) in 100% black wherever you with the effect to be applied. The vector mask itself can not contain pixels.
If you have any questions about setting up your files we will be happy to assist you!
You can reach us 24/7 at 800-594-7733.