Sumatra PDF is a slim, free, open-source PDF, XPS, CBZ and CBR reader for Windows.
Sumatra PDF is small and starts up very fast.
Sumatra has a minimalistic design. Simplicity has a higher priority than a lot of features.
add support for viewing XPS documents
add support for viewing CBZ and CBR comic books
add File/Save Shortcut menu item to create shortcuts to a specific place in a document
add context menu for copying text, link addresses and comments. In browser plugin it also adds saving and printing commands
add folder browsing (Ctrl+Shift+Right opens next PDF document in the current folder, Ctrl+Shift+Left opens previous document)
Tools and Utilities
Product page: here