XnView Software

Have a good day.
Thanks for the directions.

I did some tests, I don't think the problem is in the scanner but in the XnView MP program
Indeed.
I have a Canon 900f scanner.
If I use the program provided by Canon and set the acquisition value to 300 dpi in the settings, the file that comes out has a ...

Have a nice day.
Yes, I used the XnView MP program.
The file format when I save it, is .jpg.
A test file is 4 Mib.
Since the forum accepts files up to 2 Mib, I attach a link to my Dropbox.
Best regards

https://www.dropbox.com/scl/fi/02buwvsk27oh65qv8dv6x/Scan-2025-06-04_09-52-41.jpg?rlkey ...

Have a good day.
I attach two more images.
I highlighted the two boxes where, in the first, the Xnview one, the acquisition value is indicated: 300 dpi (the scan was done as a photo and not as a pdf) and in the second box, the Photoshop one, the dpi value is indicated: 72.
I don't understand why ...

Good day.
Translation made with Google Translator.

XnView MP program
To scan photos I use the output resolution of 300 dpi.
However, when I open the photo with Photoshop the resolution is 72.
From the tests I have also done with other programs, perhaps the problem is in the XnView MP program.
How ...