Acrobat opens full screen every time

Hello @garethirwin1234

I hope you are doing well, and thank you for reaching out.

Could you please check if you have the latest version of Acrobat installed: 25.001.20693, Planned update, Sept 09, 2025? Go to Menu(Win)/Acrobat(Mac) > Help > About Adobe Acrobat. From the same Help menu, check for any pending updates. Install the updates, restart the app and the machine, and try again.

For testing purposes, go to Menu(Win)/Acrobat(Mac) > Preferences > Full Screen and uncheck the options under the Full Screen setup. Click OK, restart the app, and check. You can re-enable the settings after the test. 

Also, go to Menu(Win)/Acrobat(Mac) > Preferences > Security Enhanced > Uncheck "Enable Protected Mode at startup, Protected View, and Enhanced security. Click OK, restart the app, and check. Please enable the security settings after the test.

Create a testing user profile with full admin rights, install Acrobat, and check if the documents are still opening in full-screen mode.

Reset the Acrobat Preferences once and restart the machine. Also, ensure that all the operating system updates, both mandatory and optional, are installed. 

If the issue still continues, please use the Acrobat Cleaner tool to remove the installed app, restart the computer, and reinstall Acrobat. 

If the issue continues, please provide the following information: the current version of the operating system on your device, a quick screen recording, and the logs from the affected machine. To collect the logs, download and run the Log Collector tool. Make sure to select all log options and attempt to reproduce the issue. After that, close the Log Collector tool; it will generate the logs along with a log ID. Please share this log ID with us for further investigation.

Thanks,

Anand Sri.