Artworks should be mandatorily in CMYK color format Make sure the resolution of the artwork is at least 300 dpi or more. Add a bleed area of 3 mm around all edges of your design. Ensure that all important texts are at least 4 mm away from the edge of the finished size. Make sure you convert the fonts to outlines. PDF, TIFF and PSD are the recommended file formats for uploading designs on our design platform.