Smudjo

Selection and transform

In short. Tap Select (the dashed shape, or V) and drag over the canvas. Drag inside the selection to move it; the corner handles scale it and the round handle turns it. The bar by the selection keeps the move, undoes it, duplicates, copies, cuts or deletes.

Select

On iPad, a rectangle selected on a painting of discs and scaled up by its corner: its size in pixels, four corner handles, the round turn handle above it, and the selection's bar below: deselect, delete, cut, copy, duplicate, undo the move and done.
A selection scaled by a corner, the round handle above it to turn it, and its bar.
  1. Tap Select, beside the brush. Tap it again to choose its shape: rectangle, ellipse or lasso.
  2. Drag over the canvas: a rectangle or an ellipse from corner to corner, a lasso around what you want.

A selection takes what’s on the current layer. Select the Whole Layer (in the same panel, or ⌘A) takes all of it; Deselect (or Esc) lets it go.

Move, scale and turn

  • Move: drag inside the selection.
  • Scale: drag a corner handle.
  • Turn: drag the round handle; it snaps to every 15°.

The bar beside the selection has Done (the check, or Return), which keeps the move, and Undo the move, which puts it back. A move is one step of undo.

Duplicate, copy, cut and paste

The same bar duplicates what’s selected (the copy stays selected, ready to move), copies it, cuts it, or deletes it. A copy is an ordinary picture: paste it in another app too.

Paste as a Layer, in Select’s panel (or ⌘V), puts what you copied, or any picture you copied elsewhere, on a layer of its own. Pasted from Smudjo, it lands back where it was.

Paint inside a selection

With a selection on, the brush, the eraser, smudge and fill only touch what’s inside it. A note at the bottom says Painting inside the selection, with Deselect to paint everywhere again.

Keys on a Mac or an iPad keyboard

Key
VSelect
⌘ASelect the whole layer
EscDeselect
DeleteDelete what’s selected
⌘X, ⌘C, ⌘VCut, copy, paste as a layer
ReturnKeep the move

Updated 7 November 2026, for Smudjo 1.1.1.