Adobe Photoshop is a raster graphics editor developed by Adobe Systems. It was created in 1988 by Thomas and John Knoll and has become the standard for professional photo editing and graphic design. Photoshop allows users to paint, draw, retouch photos, add notes, and work with type. The basic steps to make an image in Photoshop are to control the size, open the file, insert an image by opening a file, select and paste the image, then reduce the original size.