So I had this idea today that I could make an image 72dpi and make an image 3x2 and if I measured it on my monitor with a ruler the inches would actually be the same in physical space. This is not the case. Am I missing something here or do measurements in Photoshop vs screen resolution never match up?
The rulers in photoshop (ctrl+r) reflect actual inches at print size. (When set to inches obviously) 72dpi is a sort of generic standard for monitors, however, its only rarely held to. Measure your monitor, then divide its resolution by each dimension to find your PPI. Mine is 90. IF you want to fix your print size zoom…