ViewerKeyboard Shortcut
Next TabCtrl+Tab
Previous TabCtrl+Shift+Tab
Scroll upUp arrow
Scroll downDown arrow
Scroll page upPage up
Scroll Page downPage down
First PageHome
Last PageEnd
 Zoom in/out  
Ctrl+(“-”/“+”) or Ctrl+Mouse wheel  
FullScreen Mode OnF11
FullScreen Mode OffEsc
SaveCtrl+S
Find TextCtrl+F
PrintCtrl+P
Close TabCtrl+W
UndoCtrl+Z
RedoCtrl+Y
Select Tab NumberCtrl+[1-9]
Fit Page WidthCtrl+0
Text Search              Keyboard Shortcut                      
Find NextF3 or Right Arrow
Find PreviousShift+F3 or Left Arrow