title: How to easily resize/optimize an image size with iOS?
body: <p>My application is downloading a set of image files from the network, and saving them to the local iPhone disk. Some of those images are pretty big in size (widths larger than 500 pixels, for instance). Since the iPhone doesn't even have a big enough display to show the image in its original size, I'm planning on resizing the image to something a bit smaller to save on space/performance.</p>
  
  <p>Also, some of those images are JPEGs and they are not saved as the usual 60% quality setting.</p>
  
  <p>How can I resize a picture with the iPhone SDK, and how can I change the quality setting of a JPEG image?</p>