SumatraPDF

Download it here now always the current version

Version SumatraPDF 32/64 bit Version 3.1.2rel-2886-gdabb1569f

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Download from MEGA

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Download from BOX-NET

Download the stable 2.1.1, 2.3.2, 2.4, 3.0 from MEGA  x86 or the X64 version

Author site http://blog.kowalczyk.info/software/sumatrapdf/

What is Sumatra PDF?

Sumatra PDF is a slim, free, open-source PDF viewer for Windows.

Why another PDF reader?

Sumatra has a minimalistic design. Simplicity has a higher priority than a lot of features.

It's small and starts up very fast.

It's designed for portable use: it's just one file with no external dependencies so you can easily run it from external USB drive.

Here's how it looks in action: