Generally, most offset prints require a file with 300dpi. Prints on other material such as newspaper or silk screen printing may require a file with smaller dpi. For inkjet prints such as those capable of 2880 dpi, the input file does not have to be the same as the output dpi (a 300 dpi image is more than enough for any inkjet prints disregard of the output dpi). For best results, please contact your printer for the dpi settings or file size.