How to Create a Digital Signature Using PDF Security. Adobe Acrobat enables you to create PDF documents that are compatible with virtually every operating system and platform.

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.

How to Record and Insert a Signature Into Office 2007. Microsoft Office 2007's digital signature feature allows users to finalize documents with a stamp of approval.