Navigate with left/rigth cursor keys, mouse wheel, swiping left and right, clicking on pages or using the navigation bar at the bottom.

Use keyboard up/down cursor keys to skip one page in two-page mode

Use keyboard Ctrl + up/down cursor keys to open previous/next loaded file

Use keyboard "f" key or the button on the navigation bar to toggle fullscreen.

Use keyboard "2" key to switch between two- and one-page mode.

Use keyboard "z" key or enable/disable mouse zoom. Right mouse click can be used to disable it too.

Use keyboard "l" and "r" keys to rotate the page.

Use keyboard "g" to toggle grayscale mode.

Use keyboard "h" or middle mouse click to toggle galley mode.