The best free PDF reader apps do more than just act as a PDF viewer - any modern browser can do that. What I'm looking for is tools that go beyond that, offering commenting, collaboration, and ...

The newer versions of Firefox include a PDF viewer enabled by default when you install or upgrade the browser. There is no need to install an add-on or use an external application to open PDF files on ...

Whether you use a Mac or MacBook, the best PDF reader for Mac is a completely Apple-compatible app for viewing and annotating PDF documents. For most Mac users, Apple Preview is still the best PDF ...

Jack Wallen shares his choice of the five best small footprint PDF viewers that can easily replace Adobe Reader. The Portable Document Format is one of the most oft-used document types in business.