Best File Format for Sublimation – You can use any of the common file formats with you graphic application. Common ones are .jpg, .tiff, .pdf, .eps, .cdr, .ai, etc. If you are using a RIP then those programs have certain formats that work best. It is best to use Adobe 1998 RGB color space in your graphics application because it has the largest color gamut. Most digital cameras use SRGB colors so it is best to convert those files to Adobe 1998 RGB in your graphics application. The best resolution to use is 150 dpi at 100% of final size. Anything that is higher in resolution is a waste of memory. Anything that is lower in resolution your will risk poor quality images.