How to improve scan quality (resolution)

[Blop3474]

Describe your issue here.

Steps to reproduce

The result of my scanned doc is poor. Therefore it's difficult to read it in PDF.

Expected behaviour

Possibility to increase the resolution of the image shots during th scan.

Actual behaviour

It's not possible to change the image resolution

Would you like to work on the issue?

I'm not a developper but I can be a tester.