title: How to capture user's handwritten signature in iOS app
body: <p>In my app, user will request a digitized, handwritten signature from customers. </p>
  
  <p>I need the ability to capture the signature as the user 'writes' it on the touchscreen. I also need to store an image of the digitized signature for future use.</p>
  
  <p>I need help or pointers to enable my application to have digital signature?</p>