title: saving an image file from UIImageView
body: <p>I'm trying to save the image from a <code>UIImageView</code> as per below:</p>
  
  <pre><code>NSString  *pngfile = [NSHomeDirectory() stringByAppendingPathComponent:@"Library/file.png"];
  [UIImagePNGRepresentation(image) writeToFile:pngfile atomically:YES];
  </code></pre>
  
  <p>Everything is saving properly. My question is, will there be a problem with Apple saying that this file needs to be marked so it doesn't get backed up? I was reading examples as per this page:</p>
  
  <p><a href="https://stackoverflow.com/questions/10588652/why-was-my-application-still-rejected-after-excluding-files-from-icloud-backup-u">Why was my application still rejected after excluding files from iCloud backup using this code?</a></p>
  
  <p>And a few other pages. But is this necessary for saving this image in this instance?</p>