Canvas Clipboard The canvas clipboard provides a convenient spot to temporarily save up to 3 canvases. Click the right facing arrow to push the canvas onto the clipboard. Click the left arrow to pop it back. The three buttons on top switch among the three clipboards.

Use the clipboard frequently to backup a canvas, especially before a tricky painting operation. For example, before drawing a line, push the canvas onto a clipboard. If it doesn't look right, just pop the original canvas back, and try again. Of course, you can also use Paintlet's undo button.