Adobe Reader may be the most popular option for reading PDFs on your Mac, but the 77 MB app is far from being lightweight and nimble. If you are looking for an alternative that takes up less space and is easier on your computer, then you should check out PDF Reader X.
When you launch PDF Reader X for the first time, you'll immediately notice the UI, which is not as polished as some OS X apps. Its interface is functional and efficient, but that can be a benefit as basic reader app does not require a lot of fluff. The best part of the experience is the tabbed interface, which allows you to open multiple documents and easily switch between them.
Beyond reading, PDF Reader X supports bookmarking and has some light annotating features like h