Sumatra PDF je lagan, slobodan, open source PDF viewer za Windows OS.

Sumatra ima minimalistički dizajn, i jednostavnost ima veći prioritet nego mnogo mogučnosti.

Zato se startuje u jako kratkom vremenu i veoma je brz.

Takođe ga možete koristiti direktno sa USB memorije.

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