>
Sumatra (http://downloadsquad.switched.com/tag/Sumatra/ )— the lightweight, open source alternative to Adobe Reader — has just updated to version 1.3 and lead developer Krzysztof Kowalczyk has delivered some welcome improvements. Sumatra now uses libjpeg-turbo for faster rendering of some PDFs and its printing support has been improved. Documents can also be zoomed and rotated using your keyboard via the + and * keys, respectively.