title: Add effects to an image dynamically in php
body: <p>I want to add a small functionality to my site wherein a user can upload his pic and then on selecting a specific color(basically on clicking something) a splash effect of that color gets added to that image. </p>
  
  <p>The user should then get an option to save that image.</p>
  
  <p>Is it possible using the php GD library? Any helpful comments are welcome.</p>
  
  <p>Edit: What if i create the images for these effects? how can i overlay them on the user's pic and then offer the complete image as a download?</p>