Open Acrobat, navigate to Edit menu -> Preferences -> Page Display -> set Zoom to your desired lever.
Click OK to confirm the changes.
Relaunch the application to check if it works for you.
What you mentioned did not work. I did however find the problem: Preferences > Under "Open Settings" section Click on the first field "Restore last view settings when reopening documents”. Thank you for trying though.
1 person found this helpful
You are talking about PDF Windows..
If you are talking about the windows to maximize then do one things
If your pdf window is open up in a small windows then click on maximize button in between of minimize and close button. After maximize the button close the PDF windows and open it up again. Now you will see the result (It will open in large window of pdf).