Whyteboard allows you to annotate PDF and PostScript documents and various image formats. You can draw with common tools such as a pen, rectangle, ellipse, text tool, etc. You can draw shapes, which can be moved, resized, recoloured, etc. Your drawing history is stored, allowing you to replay it. Tabbed painting is supported, with each sheet having its own unlimited undo and redo operations. There are live-updating thumbnails for each sheet. Sheets that are closed can also be undone, restoring their data. Note controls, similar to virtual, editable Post-It Notes. A draggable, live-updating resizable canvas that stretches to whatever size you want.
Ardesia helps you make colored free-hand annotations on your computer screen, record them, and share them on the network. You can use the tool to make effective on-screen presentations, highlight things, or point out things of interest. It facilitates online presentations and demos, showing in real time your computer screen to anyone in the network. You can use this tool to enhance your lessons or courses. You can create nice tutorials and documentation, saving the desktop images with your free hand annotations. It works with any pointing device. You can draw lines with different strength, select color, erase things, and draw arrows. You can free-hand draw geometrical shapes using the shape recognizer, insert text with the keyboard, and highlight screen areas. You can draw upon the desktop or select an image as a background.
Lightning effect JS is an object that can draw a random lightning bolt on the page. It can create a canvas on which a glowing random line similar to lightning bolt is drawn within given page boundaries. The position, color, and thickness of the lightning bolt are configurable parameters.
Whiteboard lets the user draw freehand graphics on a Web page. It can create a canvas object for the whiteboard (if one does not exist) and let the user draw on the canvas area by dragging the mouse around. The color, thickness, line join, and line cap of the drawing pen can be configured. The object can also clear the whiteboard, export the coordinates of the drawn lines, or import previously drawn lines.