Graphics

Gimp Users Manual: An HTML-formatted 300+-page manual for The GIMP, a 100% free image manipulation program similar to Adobe's Photoshop.
ImageMagick: This manual documents ImageMagick. Imagemagick is a set of programs to manipulate various image formats (JPEG, TIFF, PhotoCD, PBM, XPM, etc...). All manipulations can be achieved through shell commands as well as through a X11 graphical interface (display).
TIFF Software: Support for the Tag Image File Format (TIFF) for storing image data.
The Imlib Programmer's Guide: This guide describes what Imlib can do and how to use it. Examples are included.
The User's Guide to the Gimp-Print Top Quality Pr: The Gimp-Print Top Quality Printer Drivers (hereafter called Gimp-Print) are a set of printer drivers written to take advantage of the full capabilities of a wide range of printers. This document will explain how to use the Gimp-Print software to achieve high quality printouts from the GIMP (GNU Image Manipulation Program) and CUPS (Common Unix Printing System).
Xsane: This manual describes how to use xsane as a frontend to hardware scanners. Xsane is a gtk-based X11 frontend for SANE (Scanner Access Now Easy). SANE stands for "Scanner Access Now Easy" and is an application programming interface (API) that provides standardized access to any raster image scanner hardware (flatbed scanner, hand-held scanner, video- and still-cameras, frame-grabbers, etc.).