title: How to combine multiple images fast for page views counter
body: <p>How can I combine multiple images, such as base image with logo and number of digits images to display graphical counter with pageviews count, updated dynamically?</p>
  
  <p>It should be very fast, with thousands of renders per second. User should see counter image without Javascript and with single <code>img</code> tag.</p>
  
  <p>I prefer to implement that counter with Python using PIL library, but other solutions welcome as well.</p>