gInk is an Open Source on-screen annotation app designed to allow you to make notes on a screen display.
gInk can be used to help to improve presentations and demonstrations and to contribute to work on fleeting thoughts or ideas which need to be recorded beside something on your screen.
The features provided in gInk are inspired by another screen annotation software Epic Pen but with an emphasis on more ease of use.
gInk's interface is designed to be as simple as possible without distracting attention away from the presentation. Unlike other similar software, you are given a selection of pens to draw things instead of changing individual settings of color, transparency, and tip width every time you make a notation. Each pen is a combination of these attributes and is configurable to your specific needs.