Metadata is like a "digital ID card" for each PDF file; it contains core information about the document, such as the title, ...

Reading PDFs on the iPad can be way better than what you get from Apple's Books app. These are the best apps to use for reading at PDF files on your iPad, or even your iPhone. The often-disliked PDF ...

Gimp is normally used to create or manipulate images files, but can also work with PDFs if you understand how it works and what it's limits are. If you’ve never used Gimp—a free image editor available ...

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including ...

A PDF — which stands for Portable Document Format — is an open standard document file extension created by Adobe. It has gained popularity in recent years because ...