Free (and lesser, of course) alternatives to PhotoShop
DigiKam | Digikam is an advanced digital photo management program. It allows you to view, manage, edit, enhance, organize, tag, and share photographs under Linux systems. The main aspect of this program is the organization.
Gimp | Gimp is a GNU Image Manipulation program. It is a freely distributed piece of software for tasks like photo retouching, image composition, and image authoring. It can be used diversely as a simple paint program or as an expert quality photo retouching program. It is also possible to use the program as an online batch processing system, a mass production image renderer, and an image format converter. It is designed to be augmented with plug-ins and extensions and is easily scripted.
Irfanview | Irfanview is a a freeware for non-commercial use. It is designed to be simple for beginners but also holds the capability of being powerful for professionals. Downloadable.
Paint.net | This is a free image and photo editing software for PC’s that runs on Windows. It supports layers, unlimited undo, special effects, and a wide variety of useful and powerful tools. There is also the option to use the online community which provides friendly help, tutorials, and plugins. Downloadable.
Photobie | Photobie is a photo and image editing freeware program. On it you may edit pictures, use GIF animation, screep capture, image browser, photoshop filter plug-ins, and more. The options available for download include Photobie software, Photobie FlashJukebox, Photobie Photo Template, and other freebies.
Photo Pos Pro | This is a free photo editor which offers a variety of possibilities pertaining to image enhancing and image editing. The tools included are for precision repairs and editing, rich text tools, computer graphics, layers, masks, and more. Downloadable.
Photoscape | Photoscape is an easy photo editing software that focuses on fixing and enhancing photographs. Key features include viewer, editor, batch editor, animated GIF, and a raw converter. Downloadable.
Pixia | Created for design of anime and manga, the original Japanese version has been translated into English (and other languages) and made available for free download. Windows only.
SunlitGreen | This is a simple digital photo editing software program. It’s basic features incude view, rotate, apply color correctss, and add effects. Downloadable.