Keyboard Shortcuts

General

Shortcut	Action
`Ctrl Z`	Undo
`Ctrl Shift Z`	Redo
`Ctrl A`	Select all layers
`Ctrl C`	Copy selected layers
`Ctrl V`	Paste
`Ctrl X`	Cut
`Ctrl G`	Group selected layers
`Ctrl Shift G`	Ungroup
`Escape`	Deselect / cancel active tool
`Delete` or `Backspace`	Delete selected layers

Shortcut	Action
`Ctrl +`	Zoom in
`Ctrl -`	Zoom out
`Ctrl`/`Cmd` + scroll	Zoom in/out (centered on cursor)
Scroll (no modifier)	Pan canvas

Moving layers

Shortcut	Action
`Arrow keys`	Move selected layer 1 px
`Shift + Arrow keys`	Move selected layer 10 px
`Ctrl ↑` / `Ctrl ↓`	Move layer up / down in the layer stack

Selection

Shortcut	Action
`Shift + click`	Add to or remove from selection
Click-drag empty area	Rubber-band multi-select

Resizing

Modifier	Effect
Hold `Shift`	Lock aspect ratio while resizing
Hold `Alt`	Resize from the center outward

Paint tool

Shortcut	Action
Right-click	Erase pixels
Hold `Shift`	Draw a straight line

Polygon / Triangle tools

Shortcut	Action
Click	Place a vertex
Double-click	Finish placing vertices
`Escape`	Finish placing vertices
Double-click existing shape	Enter vertex edit mode