Portable Sumatra PDF 3.3.3
Sumatra PDF Portable is a free PDF, eBook (ePub, Mobi), XPS, DjVu, CHM, Comic Book (CBZ and CBR) reader for Windows. Sumatra PDF is powerful, small, portable and starts up very fast. Simplicity of the user interface has a high priority. Sumatra does not lock the PDF file. Without closing the PDF file a user can recompile the text document and generate a new PDF file and then press the R key to refresh the PDF document.