iSlide > Export > Save as Read only 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 presentation” can prevent changes to the final version of the file.
Password protection: A password will be randomly generated. You can also custom a password (Please don't forget the password)
Content lock: Others can't make any changes to the presentation
When you open a read-only presentation, you will be asked to enter a password
The read-only presentation after exporting