Here is a guide that shows you how to sign a PDF document in Microsoft Edge. Signatures are basically used to get or provide consent or approval on documents like contracts, legal documents, ...

Portable document format (PDF) files remain a popular choice for business documents ranging from contracts and forms to manuals and reports, so there's a good chance you need to open them often.

Finally, Windows 10 can save a file as a PDF from any application, and you can read a PDF right inside the Microsoft Edge browser. But if you want to do more than that, or you're used to the Windows 8 ...