Custom Imprint Artwork Upload your custom artwork here. Format Print-ready PDF, 350dpi or higher Size After designing your artwork, please print and measure with a ruler to verify that it is no larger than the maximum ad size: 3¾” high × 2¼” wide Upload Ad Content Name*Email Address* Ad Layout*Upload PDF, JPG, or Word files.Accepted file types: pdf, doc, jpg. This iframe contains the logic required to handle Ajax powered Gravity Forms.