Restrict Permissions
There are two methods for protecting the information in a PowerPoint presentation: a Digital Signature and Restrict Access. Both options require a Server, so you do NOT have to practice these steps.
4.
Consider It: Use a Digital Signature
A Digital Signature is another method of authenticating that the
information in this presentation is secure. The purpose of the
Digital Signature is to validate the integrity of your file. When you Sign a document, you will be asked to
state the purpose for the signing. The sign indicates who is signing but you can Change the signer if you
wish.
Consider This, Too: Restrict Access
By
default, PowerPoint presentations have Unrestricted Access.
However, some documentation is very sensitive and can only be opened
by authorized users.
You can Restrict Permission by People with a Digital Rights Management
Server. DRM relies on a server to authenticate trusted
users.
Please keep going...
File ->Info-> Protect Presentation->Restrict Access