Why would anyone want to password-protect their PowerPoint presentations? There are many reasons, and here are some of them. A presentation with confidential content can be prevented from being edited if it is password protected. Nobody without access to the password can open or edit the presentation file. The password-protected presentation is safer to share. You can provide the password to the person whom you are sharing the presentation with if they need to edit. In addition to providing a password-to-open option, PowerPoint provides a less restrictive password-to-modify option. So, your presentation can be opened by anybody, but can’t be modified, this makes your content non editable.
Learn how to password-encrypt your presentation in PowerPoint 2003 and 2002 for Windows.

