Adobe Photoshop is a raster graphics editor developed by Adobe Systems for macOS and Windows. It was created in 1988 by Thomas and John Knoll and has become the standard for professional photo editing and graphic design. Photoshop combines tools for painting, drawing, retouching, adding notes, and working with type. The document then outlines 10 steps for making an image in Photoshop, including controlling size, opening a file, inserting an image, selecting and pasting the image, reducing its size, and saving it.