The files in this directory named jpegsrc.v*.tar.gz and jpeg-*.zip are the Independent JPEG Group library. They are a copy of the versions available on many file servers around the net. Since Ghostscript versions 3.0 and above use this library, we thought it would be a good idea to keep a copy near the principal Ghostscript distribution point. The ghostscript-*jpeg.tar.gz and gs*jpg.zip files in the AFPL, aladdin and gnu subdirectories are links to the files here. See ftp://ftp.uu.net/graphics/jpeg/ The files libpng*.tar.gz and lpng*.zip are the Portable Network Graphics library. See http://www.libpng.org/pub/png/ or ftp://ftp.libpng.org/pub/png/ The files zlib*.tar.gz and zlib*.zip are the zlib compression library. See http://www.info-zip.org/pub/infozip/zlib/ or ftp://ftp.info-zip.org/pub/infozip/zlib/