Azure CDN Demostration - Adding watermark to an image

With CDN	Without CDN
When you first open this page you may not notice any difference between the speeds of loading the two images - chances are CDN has not cached your image yet, because in our settings the cache is only valid for 5 minutes. Try to change the watermark position by clicking on one of the position circles. Still, there’s not much difference. Now, change the watermark position to its original position again. You’ll notice the picture to the left loads much faster this time, because the image is delivered directly from CDN instead of getting re-generated from the server.