Microsoft® Office PowerPoint® 2007 Plain & Simple

Adding a Digital Signature

A digital signature is much like a handwritten signature on a check or other legal document. It can be used to ensure that the document was created by a particular person. In a world where computer files can contain potentially harmful materials, a digital signature helps to reassure a recipient that the file was created by somebody they know and trust. You can use a digital signature provided by a third party that others can use to verify your document. You can also create one that only serves for you to verify that a document you open on your computer is your own.

Purchase a Third-Party Digital Signature Product

1. Be sure ...