The document describes the steps taken to edit a photograph in Adobe Photoshop CS4. The key steps are:
1) The user opens the photograph in Photoshop and uses the Magic Wand tool to select and delete the background color, leaving just the subject.
2) A new layer is created from the background layer so that additional layers can be added.
3) The Background Eraser tool is used to erase the remaining background pixels, leaving a checkered background.
4) A new square shape layer is added beneath the photo layer to act as the new background color.