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.

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.

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.

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

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

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

Now you can skip the drive or wait for something to arrive in the mail and sign a document digitally instead.

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 ...

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 ...