Advanced PDF to JPG converter 1.8 - User Guide and FAQ

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GIF File Format

Also Known As: Graphics Interchange Format

Originally designed to facilitate image transfer and online storage for use by CompuServe and its customers, GIF is primarily an exchange and storage format, although it is based on, and is supported by, many applications.

A well-defined, well-documented format in wide use, which is quick, easy to read, and reasonably easy to uncompress. It lacks, however, support for the storage of deep-pixel images.

GIF (Graphics Interchange Format) is a creation of CompuServe and is used to store multiple bitmap images in a single file for exchange between platforms and systems. In terms of number of files in existence, GIF is perhaps the most widely used format for storing multibit graphics and image data. Even a quick peek into the graphics file section of most BBSs and file archives seems to prove this true. Many of these are high-quality images of people, landscapes, cars, astrophotographs, and anthropometric gynoidal data (you guess what that is). Shareware libraries and BBSs are filled with megabytes of GIF images.

The vast majority of GIF files contain 16-color or 256-color near-photographic quality images. Gray-scale images, such as those produced by scanners, are also commonly stored using GIF, although monochrome graphics, such as clip art and document images, rarely are.

Although the bulk of GIF files are found in the Intel-based MS-DOS environment, GIF is not associated with any particular software application. GIF also was not created for any particular software application need, although most software applications that read and write graphical image data, such as paint programs, scanner and video software, and most image file display and conversion programs, usually support GIF. GIF was instead intended to allow the easy interchange and viewing of image data stored on local or remote computer systems.

JPEG File Interchange Format File Format

JPEG (Joint Photographic Experts Group) refers to a standards organization, a method of file compression, and sometimes a file format. In fact, the JPEG specification itself does not itself define a common file interchange format to store and transport JPEG data between computer platforms and operating systems. The JPEG File Interchange Format (JFIF) is a development of C-Cube Microsystems for the purpose of storing JPEG-encoded data. JFIF is designed to allow files containing JPEG-encoded data streams to be exchanged between otherwise incompatible systems and applications.

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