title: Adding keyword metadata to images in iOS
body: <p>I've been wrestling with finding a way to add keyword metadata to images in iOS. I've scoured the internet and stackoverflow but haven't found anything specific to adding keywords to images in iOS. I've seen that different applications like Photoshop and Aperture allow you to do this type of thing so, the capability for images is there in general, <strong>but is there a way to achieve this in iOS?</strong></p>
  
  <p>Specifically, is it possible to create a new key/value pair and nest it within the image metadata?</p>