Question

Simple question with yes/no answer and if yes…then how?

Suppose you have an HTML page with an image on it without any sort of watermark.

Is it possible to place a watermark on that image if a user saves it to their computer?

I need a simple function that watermarks an image upon download or save…

I do understand that once the image loads in the browser, it is technically downloaded, so is there a way to display the image without a watermark on screen, and if the user opens browser cache, he/she finds a watermarked copy?

If anybody has done this using any platform (PHP, GD, jQuery, etc.), your contribution would be appreciated.

Answer 1

Here you can read how to do it with PHP: http://www.sitepoint.com/watermark-images-php/

I personally don’t think that it is possible with javascript, because as you already have said yourself, it is already downloaded.
But don’t nail me on that.

On the server side it is for sure possible, as you can see in the above link.