Saving Files Saving a file in Photoshop is done the same way as in most Macintosh applications, by selecting Save from the File menu. To save in formats other than Photoshop, you must flatten all layers. Also, when saving as a gif , you must change the mode to Indexed Color . The name reflects the fact that these computers form these graphics by filling each square of a grid with a bit of color. You can only assign one color to each square.
Postscript graphics are resolution-independent graphics that are primarily used in publishing.
Because of the compactness of the Postscript language, its graphics are relatively small and do not occupy a lot of disk space. But in the real world, graphics must conform to specific file formats for each different application. The table below is your guide to threading through the maze of what applications use what file format and on what type of computer. A mode is the type of color information used by a graphic. In Photoshop, graphics can conform to a number of modes.