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 ...

Strangely, despite my many years of Web surfing, always on the lookout for software that will improve my productivity, it was only last week that I came across yet another PDF viewer, and I'm already ...

It’s been more than 25 years that PDF files have been around, and they’re not going anywhere anytime soon. As PDFs are the most popular format for presentations and document sharing, they are heavily ...