MPen

For example. To mark important sentence. To Write operations during Screencast. MPen is simple graffiti tool.

"MPen" is a versatile Chrome extension designed for users to highlight important sentences and make annotations during screencasts. With tools like a translucent pen, line, rectangle, ellipse, and text, it simplifies marking digital content. MPen features an undo/redo function, supports multiple languages, and is optimized for HiDPI displays. It caters to Windows users with specific touchpad settings and offers extensive keyboard shortcuts for efficient use. Enhance your presentations and online learning experiences with MPen.