Sumatra PDF is a free PDF, eBook (MOBI), XPS, DjVu, CHM, Comic Book (CBZ and CBR) reader for Windows. Sumatra PDF is small and starts up very fast. Simplicity of the user interface has a high priority. Portable version included (a single executable that can be run e.g. from USB drive and doesn't write to registry).
Sumatra PDF 3.4.6 changelog:
fix deadlock in Fit Content mode and Bookmark links
Get alerted to all of our Software updates on Twitter at @NeowinSoftware