I'm using the following setup:
Windows 10 Home 64bit, version 1803 (OS Build 17134.706)
Adobe Acrobat Pro DC, version 2019.010.20099
Two monitors, same resolution 1920*1200
One of my monitor has scaling enabled through Windows (display settings -> Scale and layout -> 125%). This will change the size of text, apps and other items.
When I open a PDF in one of my monitor and I drag this PDF to my other monitor (which has scaling on), the ruler changes (see screenshot). But when I measure using Measuring tool the correct values will be shown. In my opinion, this should not be happening.
Arpit Agrawal commented
Thanks for reaching out to us. Can you please describe whats exactly you expectation with this. What according you is not right ?