Puzzle Drawing Pad is a free to use drawing and image editing software. It lets you draw Line, Shapes like Ellipse, Rectangle and Polygon and lets you add text with different size and font. You can also paint with Brush and Erase with Eraser. You can draw on a new blank image or on an existing image. It's modern and simple UI makes it easy to use, almost anyone can use it. It comes with Mirror Mode tool that lets you draw symmetrical things. You can also rotate your images.
