Image file formats
are standardized means of organizing and storing digital images
. Image files
are composed of digital data in one of these formats that can be rasterized
for use on a computer display or printer. An image file format may store data in uncompressed, compressed, or vector
formats. Once rasterized, an image becomes a grid of pixels, each of which has a number of bits to designate its color equal to the color depth of the device displaying it.