title: How do I add a Cache-Control HTTP header to images I upload to Amazon S3?
body: <p>I think I'm probably just missing something in the docs here, but how do I specify that images I upload to S3 have a Cache-Control header when requested?</p>
  
  <p><a href="https://stackoverflow.com/questions/269840/is-it-possible-to-change-headers-on-an-s3-object-without-downloading-the-entire-o/270066">This answer</a> seems to suggest you can do it by adding metadata, but the example isn't too clear. Can anyone point me to a code sample or some documentation of how I would do this in C# please?</p>