Are you looking for a PDF Reader that follows the principle of less is more? Than Sumatra PDF is for you! The lightweight program is a free open source PDF, XPS, eBook (ePub, Mobi), CHM, DjVI and Comic Book (CBZ and CBR) reader running on Windows. SumatraPDF starts very fast and comes with a clean and simple interface. The small file size makes it ideal for portable devices, for examples USB Drives. The software can be run without installation and doesn't write to the Windows registry. Besides basic features like zoom and print, Sumatra PDF supports various viewing modes, e.g. full screen and presentation mode, keyboard shortcuts and command-line arguments. The PDF Reader also includes a plugin that can be installed during setup for viewing PDF documents in Firefox, Chrome and Opera.