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 ...

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

Need to edit a PDF document but don’t want to pay for the more expensive Adobe editors? You can add text to and sign a PDF with just the free Reader program.

iPhone users can now use their device to sign important PDFs without having to look for a desktop computer.

If a signature is not validated in a PDF, we see Validity unknown with a question mark. You need to validate the signature to make it valid.