Signing a Document, Workbook, or Presentation with a Digital Certificate
If you want to prove that a document, workbook, or presentation you’re sending or sharing really does come from you and hasn’t been changed by anyone since you finished it, you can include an invisible digital signature by attaching a digital certificate that verifies who you are. You’ll need to have a digital certificate issued to you to be able to digitally sign a document, workbook, or presentation. In most cases, digital certificates are issued through a third-party certificate provider or a corporate network.
Attach a Digital Signature
With your document, workbook, or presentation ...
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