For Best Results - Vector-based files such as PDF, EPS, Adobe Illustrator (AI), or Photoshop PSD- JPG, or TIFF files with a minimum resolution of 100 dpi at full print size- If sending a vector file, convert all text to objects (Ctrl+A then Shift+Ctrl+O in Illustrator.)
Other Accepted Files- PNG, BMP, GIF, DOC (MS Word), and Excel files saved as XPS are accepted but- not recommended due to the low quality of print they produce.