Ever need to "sign" a PDF, meaning insert your signature in a document as though you'd handwritten it? Productivity501 shows how you can sign PDFs using Adobe Acrobat's stamping feature: It turns ...

Adding text fields and other form elements to create editable PDF forms in Adobe Acrobat Professional XI is a straightforward process. These elements create an interactive document that is ...

Whether you use an iPhone or an Android phone, both include built-in options for adding a quick signature to a document, saving a new copy and sending it off.

Fortunately, Apple has added the ability to electronically sign a PDF document using Preview, a program that comes preinstalled on every Mac running OS X Lion or later.