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.

If you would like to learn how to digitally sign a PDF documents online for free using the cloud-based eSign PDF signature service this guide ...

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

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 file on Android For Android owners, the easiest way to sign a document is to open it on the Google Drive app.

How to digitally sign a pdf document with your trackpad Open the PDF file that needs to be signed in the Preview app on your Mac. Click on the Markup icon, followed by the signature icon.

You can add your signature to PDF documents by using Apple, Android or PCs. Kurt "CyberGuy" Knutsson shows you how to add e-signatures using your devices.

How to create a digital signature on a Mac If you need to sign a PDF you might think the only way you can do so is to print it off, sign it with a pen, and then scan it in again.