There are numerous programs for image editing. A list of links can be found below.

To learn image editing, a good idea is to look for instructional videos online. An example is this tutorial on how to remove a background with Gimp.

Installable Image Editors

• Photoshop - professional, expensive
• Photoshop Elements - small brother of Photoshop
• GIMP - best free alternative
• Paint.net - free and simpler than GIMP
• Inkscape - a free editor for vector graphics

Online Image Editors

• PIXLR Editor - probably the best online image editor
• PIXLR Express - fast visual effects and filters for fotos
• iPiccy