Use the left and right arrow keys to change pages. On touch screens, swipe to turn pages, pinch to zoom, and tap to show or hide the controls.

Single-Page Mode / Double-Page Mode: Choose between displaying one page at a time or two.

Zoom In / Zoom Out: Zoom in or out of the displayed page(s).

Fullscreen Mode: Enlarge the reader to edges of the screen. Press [ESC] to exit fullscreen mode.