Ardesia - Ardesia is an usefull software for use your desktop as a Sketchpad.
Epic Pen - A windows tool for drawing over your desktop and applications
Arabic Speech to Text - Arabic Speech to Text app enables users to enter the text by using image scanning, voice recognition, and text features to start the conversation without much of a stretch.
gInk - An on-screen on-screen annotation software for Windows.
ZoomIt - Presentation utility for zooming and drawing on the screen.
ScreenMarker - ScreenMarker is a lightweight tool that lets you write and draw on the screen.