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 ...

PDF files have become ubiquitous in our multi-platform world. This convenient file format makes it possible to view and share documents across various devices using various operating systems and ...

If you work with PDF files regularly then a PDF editor is an indispensable tool. Whether it’s part of your job, you manage PDF files for your own personal use, or you just need to complete a one-off ...