Hi,

I have images of the front and back side of a credit card size item. I want to print them with exact credit card dimensions on a single 10 cm x 15 cm sheet. How can I do that?

Whatever I try the printed dimensions differ from the original.

You can use a scanner mobile application and take a pic of a cradit card.
Then the application will clear the dimensions of pictures by their scan.

Then you can print by a normal printer.