Dibuja MS Paint Alternative – Install Dibuja on Ubuntu
Dibuja is a free and open source paint application for Linux. Using this you can create simple drawing, edit your images, resize and crop your images, add text on your images. You can use this application as a Microsoft paint or Paintbrush alternative on Linux. You can also add effects on your drawing and images. It comes with gray scale, blur, invert, insta 1977, emboss, threshold, vignette and sharpen image effects. It is released under GNU GPL v3 license.