The GIMP: Drawing and image manipulation program similiar to Photoshop,
with an open architecture. (GPL). Last modification on December 25 2000.
Xv: xv is an interactive image manipulation program for the X Window System.
It can operate on images in the GIF, JPEG, TIFF, PBM, PGM, PPM, XPM, X11
bitmap, Sun Rasterfile, Targa, RLE, RGB, BMP, PCX, FITS, and PM formats on all
known types of X displays. It can generate PostScript files, and if you have
ghostscript (version 2.6 or above) installed on your machine, it can also
display them. (xv is shareware for personal use only; Commercial, government,
and institutional users must register their copies of xv.) Last modification on September 16 2000.
GQview: GQview is an image viewer for the Linux operating system. It's key
features include single click file viewing, external editor support, and zoom
features. Last modification on December 3 2000.