[webkit-dev] Rendering a PDF on an HTML5 Canvas using WebKit/AIR

Hi, I'd like to know if anybody has experience with rendering a PDF on an HTML5 canvas? I'd like to to this and listen for mouse events etc. do overlay some customised functionality on top. I'd like to be able to do this both on a desktop AIR app and on the browser if possible. Any help or advice would be much appreciated. Regards, Andrew.