The best art work format is PDF. For digital print we accept both formats of vector and pixel graphics. For screen printing process we accept only vector files created in any vector graphic program (Illustrator, Corel Draw, FLEXI, AutoCAD etc). If you send pixel graphics (JPEG, GIF, PNG, TIFF, PSD etc), we need to vectorize such a file (to convert it to a vector file). If a design is simple, this vectorization process is free of charge. If we have to spend 1 hour or more on your art work, we’ll charge you $20 – $50 for the design.