How to save a rendered webpage as image with JavaScript?

Question

In my app I have to provide a \'save as image\' button. I want to save the HTML rendered on my webpage as an image in JavaScript. It is a webapp and will be used in browsers

Answer 1

Your question is very incomplete. First, is that a mobile or desktop app? In both cases, the solution to your problem will strongly depend on the HTML engine that renders the pages: Webkit, Geko/Firefox, Trident/IE for example have their own method to produce the view that you want to save as an image.

Anyway, you could start looking at how this Firefox plugin works: https://addons.mozilla.org/it/firefox/addon/pagesaver/

It should do what you want to implement, look for its source code.