Free Image/Graphics Editors
In the field of instructional design (being it corporate, education or independent sectors) it is sometimes hard to have the lates and most expensive editors out there. Many people coming into this field now that need to create materials and edit images know how hard ti can be to save up the money to buy the Adobe products, even with the student editions out there.
Here is a short list of free editors out there that might not be as complete as the Adobe suites but will do for many of those tasks you would perform on the expensive tools.
Paint.NET – basic image editor.
GIMP – open source image editor (similar to Photoshop).
PhotoGIMP – version of GIMP that most resembles Adobe Photoshop’s interface (for those used to working on Photoshop).
GIMPhoto
Inkscape – open source vector graphic editor.
DrawPlus – powerful and intuitive vector graphic editor.
Pencil – open source animation (Flash) editor.
SynFig – vector based animation editor (similar to Flash).
AnimPixels – unique animation editor with its own style.
More tools and hints here and here.