It is quite easy to digitally sign a PDF document in Windows. You can use a free software like Advanced PDF Utilities Free that allows you to edit and digitally sign a PDF file.

How to sign a PDF document on macOS Preview, on macOS, will automatically save your signature and even share it with other Apple products signed into the same account.

Technology has advanced to the point that it is now possible to digitally sign a PDF document, here's the multiple ways on how to do it.

Don't have a printer and scanner? You still can easily sign a PDF file, no matter the operating system you're running.

To send a document or letter with your signature, use Acrobat to create a digital signature from a scanned copy of your handwritten signature.

The eSign PDF online digital signature service provides a number of ways for you to add an electronic or digital signature to a document.

Apple has innovated the process of signing PDF documents with its digital signature technology. As a result, it has helped to make the process of printing documents out to be signed and scanned a ...

This tutorial shows you how to enable and validate Digital Signature for PDF files in the Microsoft Edge browser. You can also view digital signatures in Edge.

Once the PDF is signed, just save the document and it's ready to be used. But please notice that this only works on Mac OS X 10.7 Lion, if you need to digitally sign PDF documents on Mac other ...