Merge Image using Javascript

Question

Is it possible to merge pictures using javascript?

For example, if you have 2 rectangle .jpg or .png images files of the same size, is it possible that you can align

Answer 1

Huỳnh Quốc Phong is partially right:

You can use Canvas to merge images. But they can origin from other domains. Just load the pictures in your dom . Once the pictures are loaded (can be checked with javascript, see below) you can use them in your canvas.

var canvas = canvasBuild.getContext('canvasObj');
var img = document.getElementById('mergePic1');
canvas.drawImage(img, 0, 0);

To check if the images were loaded, I would recommend using the jQuery plugin http://desandro.github.io/imagesloaded/ - but it can also be done without.