On 23/12/2018 22.54, Peter Jason wrote:
Before going to a photo kiosk I PShop all RAW
images, and crop to a 2:3 ratio. I save to jpeg.

The quality of the Kiosk prints are mediocre even
if I turn off the kiosk's offer to "sharpen" &
"auto-adjust" the images.

Mediocre in which sense? Grainy?

What density have your jpegs, or how may pixels they have and how many
centimetres have the print?

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Cheers, Carlos.