A digital signature will ensure the authenticity of any document and is verified with a green badge. An electronic signature is usable in many cases, but more important legal documents may not accept it and will require a digital signature instead. This type of signature is called an electronic signature – essentially a digitized version of a traditional signature. On Microsoft Word, adding a digital signature is a useful way to sign a letter or declaration without having to print out the document, sign it and then scan it.
Apple lets users save digital versions of their signatures on a Mac, and access them at any time to sign a document. Users might need to add signatures to PDF files, especially if uploading a form or signing a contract. A Mac offers a convenient way for users to insert their signature into a document, whether they're using PDF or Word files.