01-13-2018, 01:18 PM
(01-13-2018, 11:43 AM)alin33 Wrote: if I work with gimp and save jpg files with RGB 300 dpi
300 dpi on its own is meaningless. It is just a link between image size in pixels and print size in inches.
You need to know the size of your image in pixels. You also need to know what size (in inches) your customer will print. Those two will determine the dpi.