GIMP, acronym of GNU Image Manipulation Program is the name of this powerful and well-known free image editor which put in your hands lots of tools to power up your image edition tasks.
All the features of GIMP are still present. You can create your own images with tools for airbrushing, penciling, cloning, and creating gradients.
Power users can create their own brushes and patterns to use later.
Just like Photoshop, GIMP might seem impossible to use if you are not an experienced user, but it’s only a matter of time until you get used to the interface.
GIMP is like similar long-running open-source projects in which the skill and commitment of its participants yield freeware with features, capabilities, and support that even expensive packages find it hard to match.