Step 1: Preparing the graphic
This gave us a 4.25" square to work with.
We made two puzzles this day, so the photos and graphics are 'mix and match'
Using your graphics program, create a graphic/document, the size of your puzzle, and add any graphic, clip art, or text you wish. In the case of our Einstein puzzle, we sized it to the appropriate width, and just let the height exceed the boundary of the document. This is not a problem, as the laser will not etch outside the boundary.