Adobe's portable document format (PDF) has become a standard for exchanging and distributing documents. PDF files look like the original document would look if it were printed, and can be read on just ...

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 ...

Nuance PDF Reader is a capable, lighter-weight Adobe Reader substitute, but you can do better with other options like Foxit Reader. Why would you install a different utility app to view Adobe PDF ...