When somebody sends you a document as an attachment, don't just open it. Use the free tool Dangerzone to scrub it clean of any malevolent code. Here's how it works. You probably already know it's ...

Free software on your phone or tablet lets you scan, create, edit, annotate and even sign digitized documents on the go. By J. D. Biersdorfer I write the monthly Tech Tip column, which is devoted to ...

WinZip PDF Pro offers a full set of tools for editing personal and professional PDFs at a fraction of the price of Adobe Acrobat. Its interface can feel challenging at the beginning, but PDF power ...