How do I save a image into a press quality PDF?

[Blighty]

(08-23-2018, 09:58 PM)Komodo Wrote: I tried to change the print size as you both suggested. What it does is bring back the resolution to 11.811 x 11.811. So I change the resolution to 300 and the width and height goes back to 0.514 x 0.364.

11.811 pixels/mm is exactly the same as 300 pixels/inch. No difference, either will do. What you must not have is 300 pixels/mm.