Image Processing Software
Adobe Photoshop Elements ($89)

Adobe® Photoshop® Elements 7 combines power and simplicity so you can make ordinary photos extraordinary; tell engaging stories in beautiful, personalized creations for print and the web; and easily find and view all your photos.

Adobe Photoshop CS4 ($699)
  Take advantage of unrivaled editing and compositing power, a more intuitive user experience, and significant productivity enhancements.
Corel Paintshop Pro Photo X2 ($59)
  Corel® Paint Shop Pro® Photo X2 Ultimate combines ease of use with full professional power. Fix brightness, color and photo imperfections like red eye in a few clicks, or use precision photo-editing controls to create photos you'll be proud to share.
Open Source and Freeware
  GIMP is the GNU Image Manipulation Program. It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. It works on many operating systems, in many languages.
  If you feel at home in Photoshop, but need an open source alternative - Gimpshop is the way to go. Gimpshop is a hack made on top of the original Gimp project which changes all menues, dialogs, etc., in order to make them look as much as their counterparts in Photoshop. This makes users who are already familiar with the layout of Photoshop feel right at home in this open source application. Please note that all features in Photoshop in not available in Gimpshop, since it is based on the Gimp project and it's feature set.
  Krita is a graphics application for everyone who wants to get creative with images. Whether you want to create from scratch or work with existing images, Krita is meant for you.
  Started as a fork of the Gimp project, the goal is to create a more professional graphical editing application aimed at the movie industry. One of the major differences from Gimp is that CinePaint support up to 32-bit colors. And in order to get 32-bits images into CinePaint it supports a number of professional image formats such as: Cineon, DPX and OpenEXR. The latter of the formats has tools available under an open source license.

Paint.NET is free image and photo manipulation software designed to be used on computers that run Windows. It supports layers, unlimited undo, special effects, and a wide variety of useful and powerful tools.

It started development as an undergraduate college senior design project mentored by Microsoft, and is currently being maintained by some of the alumni that originally worked on it. Originally intended as a free replacement for the MS Paint software that comes with Windows, it has grown into a powerful yet simple tool for photo and image editing.

  Photoscape is provided free-of-charge. Features include resizing, brightness and color adjustment, white balance, backlight correction, frames, balloons, mosaic mode, adding text, drawing pictures, cropping, filters, red eye removal, blooming
Image Converters

Support of more than 400 graphics formats.

Several image editing tools are included, for instance color and size manipulation, several filters and effects (full version even includes Harry's Filters 3.0). Lossless (without new encoding) turning, flipping and cropping of JPEG files is supported. Creation of advanced slideshows is possible as well.

XnView (1.95.4/1.70) exists for Windows, MacOS X, Linux x86, Linux ppc, FreeBSD x86, OpenBSD x86, NetBSD x86, Solaris sparc, Solaris x86, Irix mips, HP-UX, AIX !


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