The libjpeg package is a library for manipulating JPEG (JFIF) image formats as well as simple client programs for accessing the libjpeg functions. It is entirely written in C programming language. The libjpeg package comes with libraries that allow compression of image files based on the Joint Photographic Experts Group standard. It is a “lossy” compression algorithm.

The libjpeg package contains the following libraries:
· cjpeg – compresses image files to produce JPEG/JFIF file on the standard output
· djpeg – decompresses image files from JPEG/JFIF format to either PPM, PGM, BMP or targa format
· jpegtran – used for lossless transformation of JPEG files
· rdjpgcom – displays text comments from within a JPEG file
· wrjpgcom – inserts text comments into JPEG file
· jpeg libraries – used by many programs for reading and writing JPEG format files

libjpeg is open source software, can be downloaded easily from the Internet. The current version of this software is 6b. Its download size is 599 KB and it requires approximately 3.7 MB disk space. You can download the HTTP from http://www.ijg.org/files/jpegsrc.v6b.tar.gz and FTP from ftp://ftp.uu.net/graphics/jpeg/jpegsrc.v6b.tar.gz .