test
by farhatdz
HTML
<canvas id="mcanvas"></canvas>
<button onclick="download_image()">
Download
</button>
JavaScript
var canvas = document.getElementById("mcanvas");
var context = canvas.getContext("2d");
var residence = new Image();
residence.src = "https://limerickfilmfestival.files.wordpress.com/2013/03/lit-ff-logo-new2.jpg"
context.drawImage(residence, 0, 0, 200, 200);
context.font = "bold 70px sans-serif";
context.textAlign = "right";
function download_image(){
var canvas = document.getElementById("mcanvas");
image = canvas.toDataURL("image/png").replace("image/png", "image/octet-stream");
var link = document.createElement('a');
link.download = "my-image.png";
link.href = image;
link.click();
}