In the event a digital document needs to be signed, like a form or a letter, macOS includes a way to add your signature without needing to print out the pages and rescan them.

How to add a digital signature to your documents No need to print a document, sign it and scan again. Use these tools and websites to add your digital signatures in a few simple steps.

Google Docs' drawing tool can be used to add a signature to your document, but it's more secure to use an add-on, like DocuSign or HelloSign.