Obtain a digital certificate and create a digital signature
If you do not want to purchase a digital certificate from a third-party certificate authority (CA), or if you want to digitally sign your document immediately, you can create your own digital certificate.
Digital signatures and certificates - Microsoft Support
What is a digital signature? A digital signature is an electronic, encrypted, stamp of authentication on digital information such as email messages, macros, or electronic documents. A signature confirms that the information originated from the signer and has not been altered.
Add or remove a digital signature for Microsoft 365 files
A digital signature is an electronic, encrypted, stamp of authentication on digital information such as e-mail messages, macros, or electronic documents. A signature confirms that the information originated from the signer and has not been altered.
Obtain a digital certificate and create a digital signature
If you do not want to purchase a digital certificate from a third-party certificate authority (CA), or if you want to digitally sign your document immediately, you can create your own digital certificate.
Digitally sign your VBA macro project - Microsoft Support
This article describes how you can digitally sign a macro project on Windows by using a certificate. If you don't already have a digital certificate, you'll need to get one. Tip: To use or test macro projects on your own computer, you can create your own self-signing certificate by using the Selfcert.exe tool.
View digital signature and certificate details - Microsoft Support
You can view information about a digital signature, or the certificate that is used to create the digital signature, in Word, PowerPoint, and Excel. For more information on adding or removing digital signatures, see Add or remove a digital signature.
Digital signatures and certificates - Microsoft Support
A digital signature is an electronic, encrypted, stamp of authentication on digital information such as email messages, macros, or electronic documents. A signature confirms that the information originated from the signer and has not been altered.
Insert a signature - Microsoft Support
Your handwritten signature gives your document a personal touch. You can scan your signature and store it as a picture to insert in the document. You can also insert a signature line to indicate where a signature should be written.
View digital signature and certificate details - Microsoft Support
You can view information about a digital signature, or the certificate that is used to create the digital signature, in Word, PowerPoint, and Excel. For more information on adding or removing digital signatures, see Add or remove a digital signature.
View additional information and hidden content that has been …
When you digitally sign a Microsoft 365 document, the digital signature applies to the contents of the document, including the information in the contents of a document that might not be visible in the current view of a document.
Add a signature line - Microsoft Support
You can add a signature line to a document, add a graphic of your handwritten signature, or save a signature block as an AutoText building block. For information on adding a digital signature, see Add or remove a digital signature in Office files.