GIF is a format for the exchange of images. It is a popular format graphics. Capable of storing compressed data without loss of quality in the format of not more than 256 colors. GIF format was developed in 1987 (GIF87a) by company CompuServe for transferring raster images over networks. In 1989, the format has been modified (GIF89a), have been added support transparency and animation.
This is a file used for creating line plots in the form of vector images. They include text objects, splines, forms, arcs, lines and arrows. It can contain a set of colors, images and sketches. It was initially developed for the Xfig drawing program, but today it’s used in other drawing editors.