title: How to combine/ merge 2 images into 1
body: <p>I would like to know what to do to save 2 images into 1 image.</p>
  
  <p>One of the photos can be moved, rotated and zoomed in/out...</p>
  
  <p>I'm doing this, but it basically captures all the stuff on the screen including my buttons...</p>
  
  <pre><code>UIGraphicsBeginImageContext(self.view.bounds.size);
  [self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
  UIImage *savedImg = UIGraphicsGetImageFromCurrentImageContext();
  UIGraphicsEndImageContext();
  </code></pre>