Answer:
To prevent others from editing, copy the content of the PowerPoint file and provide them with viewing access only. The simplest way to do this is to follow our steps below:
Mytour recommends using the latest version of PowerPoint 2013 for accessing new and useful features. Download and install PowerPoint 2013
Step 1:
Step 2: Right-click and select Rename.
Step 3: Change the extension from PPT to PPS. Press Enter.
Step 4: A dialog box will appear, select Yes.
The result after changing the file will be as follows:
When you click on the file, it will always open in Full Screen mode, preventing editing. Therefore, your file will always be safe, and its content cannot be altered.
Above, Mytour has guided you on how to protect PDF files. Additionally, you can also protect Word files and set passwords for Excel files following the methods as Mytour has instructed in previous articles.