Capturing div contents as an image, css3 - Javascript, jQuery, Java library

[noor]

I've got an application that will develop large pages of content (sometimes 2000x2000 or greater) that is styled with some new css3 properties (box, text shadowing, etc).Now I want to be able to, realistically, capture the contents of that wrapper div and save it as an image. Hours of searching has lead me to many dead ends and tools that don't give me everything I'm looking for:

• html2canvas - nice, but misses basically all styling I need
• canvas2imge - nice saving tool, but need to get everything to a canvas somehow. I've tried overlaying the div contents over the canvas, but that isn't working.
• java-html2image - a working java api that generates an image based on styling and html, but the rendered html isn't always correct and I need it to stay in state.

So has anyone found a tool or even Java library that can take the full contents of a div and render it has an image? I wish so badly that html2canvas could render this styling, but I dont see hope.Also - Is there a way to layer rendered html with all styling on top of a canvas? This way, I could save the canvas as a "screenshot"?