iSlide > Security Export > Save as Readonly Presentation
When you save a PowerPoint file as Read-only, you will disenable or close typing, editing commands and proofing tags and turn the file into Read-only mode.
“Read-only PPT” can prevent changes to the final version of the file.
Set password protection
The pop-up “Save as Readonly Presentation” window will show a random password by default. You can also enter a password manually, confirm and remember it and then export the read-only file.