Hi, Mary, you can password protect a document two ways,
you can require a password to just Open a presentation,
or you can require a password to change (Edit) a
Powerpoint document. Here are the instructions, taken
directly from the Help option within MS Powerpoint:
1. Open the presentation you want to password protect.
2. On the Tools menu, click Options, and then click the
Security tab.
3.Do one of the following:
- To require a password to open a presentation, in the
Password to open box, type a password, and then click OK.
- To require a password to modify a presentation, in the
Password to modify box, type a password, and then click
OK.
Note: Setting a modify password allows others who do not
know the password to view the presentation, but prevents
them from making any changes to the presentation.
In the Confirm Password dialog box, type the password
again, and then click OK.
Have fun!