First of all, you can set your PPT to password protection. If others want to open your PPT, they must enter the password before they can view it.
Enter PPT, click the LOGO in the upper left corner, and click [Prepare]-[Encrypted Document] in the menu.
Then you can enter the encryption password in the pop-up dialog box. Note that the password is case-sensitive. After entering the password, enter the password again to confirm. Finally, save the document and open the document again. A pop-up will appear asking for a password.
However, in some cases, the PPT will still be modified after someone enters the password. The password can only restrict viewing and cannot protect it from being edited. Then you can set the PPT page Is in read-only mode.
Similarly click on the LOGO in the upper left corner, and click [Prepare]-[Mark as Final State] in the menu. Then two warning options will appear, click OK respectively. After that, a sign marked as final appears in the status bar below. At this time, the document is locked, and others cannot edit or modify your document. You can see that all the menu bar buttons above turn gray, which means they cannot be edited.
The above is the detailed content of How to set up PPT to prevent it from being modified. For more information, please follow other related articles on the PHP Chinese website!

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