Firstly, simply launch the Microsoft Edge browser on your PC. Then, you need to import a PDF document file that you want to sign using the Ctrl + O hotkey.

In this guide, we'll show you the steps to use the Chromium version of Microsoft Edge as your default PDF viewer on Windows 10.

How to Change Settings to Open a PDF File. A Portable Document File is a type of file that uses an open standard across different computer platforms and programs.