We’ve always been fans of the freeFoxitPDF reader here, but when I came across an open-source PDF viewer that was even more lightweight and simple, I immediately switched.

The Sumatra PDF viewer comes as one single .exe file, and is about as minimal as you could get… it launches in less than a second for me, and the clean interface is great.

But that’s not the best part… it’s got shortcut keys that are very similar to Gmail and Google Reader.

Open Source PDF Reader for Windows in a Single .Exe

(Except j and k are swapped for some unknown reason) Here’s the list of shortcut keys:

Just being able to navigate a PDF with the same keys I use all the time was enough for me.Download Sumatra PDF Viewer for Windows