Manual

Zoom & Pan

Zoom controls include:
[ fit ]: will fit canvas in view; hotkey: Ctrl+0
[ 1:1 ]: will set 100% zoom, as in - 1:1 actual pixels of display you are using.
[ t ] - toggle feature allows to toggle between two most recent zoom and panning positions; hotkey: R
Quick menu features two buttons for zooming - and +. Click and hold the buttons to zoom in and out.
(to bring up Quick menu hold Q key on your keyboard)
Mouse - zooming with a mouse is available by holding Ctrl key and using mouse scroll wheel.
Manual input is also available. You can manually enter zoom level in percentages, for example number 200 means 200% = 2x zoom.

Hand Tool / Touch is activated by holding H or Space key on your keyboard.
Alternatively activate hand tool via a button on the left toolbar.
You will be able to pan the canvas and pinch-zoom.
Touch keys panel with modifier keys (Ctrl, Alt, Shift) will also appear. These can be toggled on/off, to use when no keyboard is available.