I was searching for a while and I was not able to find solution or to figure it out by myself. I am using Codeigniter for a rest servis, and I need to watermark images on my website. I know how to watermark it and save it, but did not find a way to watermark it dynamicly when using REST.
For example when my home page loads it calls rest service for image paths, than I return image paths to browser, and this is the moment when I need to watermark images.