If you keep Chrome up-to-date without changing any settings, any PDF you download may open within the web browser by default.

Make life easier this back-to-school season with this lifetime license to PDF Converter and Editor, just $23.99 (reg. $99.99) ...

A good PDF editor should be able to transform a variety of file types—from Microsoft Office formats to images to HTML—and do so seamlessly, preserving the original formatting.

This free online tool is great for converting and making simple changes to PDF files, but look elsewhere for serious annotation abilities.