Sumatra PDF



Super lightweight'n'speedy PDF viewer.


Pros:
+ really fast
+ simplicity to the bone
+ supports  PDF, ePub, MOBI, CHM, XPS, DjVu, CBZ, CBR

Cons:
NO CONS FOUND

Download:
http://blog.kowalczyk.info/software/sumatrapdf/download-free-pdf-viewer.html