Desktop/laptop devices - use mouse or touchpad to select pages and mouse-wheel to scroll and/or sidepanel buttons where shown - click on the page to show page and metadata information. Use the settings cogwheel to enable/disable upper and/or lower toolbar display and selected other viewer options

Mobile devices - tap the page to show page information. Metadata is shown only when enabled in Settings. Use toolbar/page controls when shown. In "manga" mode, horizontal finger movement scrolls through the horizontal page strip as do the sidepanel buttons where shown. Use settings cogwheel button to enable/disable upper and lower toolbar display

Single or two-page - use the upper toolbar icon to select single or two-page display. The circular toolbar icon with a 1 inside allows you to specify the first page as separate from the two-page spreads

Fit height/fit width - use the upper toolbar double-headed arrow icons to select quick page fit options