Many research studies proved that using images in eLearning courses enhances learning. As an eLearning developer, you always strive to make the best use of images to make your courses more memorable to your learners. Sometimes, you may need to edit images according to your requirements. You may want to change the background color and size. You may also want to join images or cut them. There are many software tools available in the market to edit images. Popular among these are Photoshop, Snagit, Greenshot and Paintshop Pro. Here is an info-graphic that shares information about those tools.
Know more tools? Please do share!