Graphic File Formats


Two major categories: bitmap (also called raster) and vector
Bitmapped graphics are grids (rows and columns)
Expanding them can cause jagged lines; making them smaller can reduce legibility
Icons, Windows wallpaper digital photos, scanned images often saved as BMP
Each dot in black and white BMP stored in 1 data bit
Color or continuous tone (greyscale) needs additional bits to store information
All graphics programs support BMPs =DIB (device-independent bit map)



4 Most Common Types for Website creation: