Features

Ability to run the program on most operation systems: Windows, Linux, Mac OS.

Has matplotlib support out-of-the box. Draw any charts directly on your screen.

Simple python application, no installation is needed. Download and run.

The source code of the application is open and available publicly on github.

Use any colour you want. There are a few colors available with direct access, and any other color can be picked.

Rather draw on whiteboard/blackboard? Sure there is such option.

The drawings can be saved as png file.

This tool is for free and always will be.

ScreenPen

ScreenPen is a simple screen annotation software which allows drawing directly on the screen:

The behavior depends on the OS you use:

For Linux transparent background is used (you can see a video playing in the background).
For Windows, the screenshot is taken, and the user draws on the captured image (you see a static image of the screen).

Left mouse button - drawing.
Right mouse button - quit.
Keyboard shortcuts:
- Ctrl+Z - undo,
- Ctrl+Y - redo,
- hold Shift - change mouse cursor icon to arrrow.

Tu run the program:

pip install screenpen

  screenpen

ScreenPen.

Features