How to Lock a PowerPoint 2007 Presentation with a Password
If you don’t want just any Tom, Dick, or Harry to look at your PowerPoint presentation, lock your presentation with a password and give out the password only to people whose opinions you trust. Follow these steps to clamp a password on a PowerPoint presentation:
Click the Office button and choose Save As.
You see the Save As dialog box.
Click the Tools button and choose General Options on the pop-up menu.
The General Options dialog box appears.
Enter a password in the Password to Open text box.
Others will need the password you enter to open the presentation. Passwords are case sensitive. In other words, you have to enter the correct combination of upper- and lowercase letters to successfully enter the password. If the password is Valparaiso (with an uppercase V), entering valparaiso (with a lowercase v) is deemed the wrong password and doesn’t open the presentation.
Enter a password in the Password to Modify text box if you want others to supply a password not to edit the presentation.
Unless they have this password, others can’t edit this presentation or save it under a different name. The presentation will open as a read-only file. It can be viewed, but not altered.
The Reenter Password to Open dialog box appears.
Enter the Open password you gave in Step 3 and click OK.
If you entered a Modify password, enter it as well and click OK.
Click the Save button in the Save As dialog box.
PowerPoint informs you that the presentation already exists and asks whether you want to replace the existing file.
Click Yes in the message box.
At last, the ordeal is over.