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.

Whether you're on an iPhone, Android phone, Mac or PC, I found free and easy ways to add text, sign documents and fill out forms. As Managing Editor, I lead CNET's mobile team, covering news and ...

Dennis O'Reilly began writing about workplace technology as an editor for Ziff-Davis' Computer Select, back when CDs were new-fangled, and IBM's PC XT was wowing the crowds at Comdex. He spent more ...

PDFs have become quite a staple in our digital lives, and it's likely that you use them more often than you realize. Perhaps you're a student doing research for multiple school projects, or possibly ...

The Portable Document Format makes it possible for you to open and view documents, no matter what operating system, software or computer you have. To make this happen in Yahoo Mail, the email program ...

The ability to edit PDF documents using the official Adobe Acrobat Reader: Edit PDF app is actually an Acrobat Premium feature. This subscription costs $10 per month or $70 yearly. There isn’t a way ...