title: how to show PDF raw data in iOS
body: <p>I have a URL where I can download a PDF, but I cannot use something like:</p>
  
  <pre><code>[myWebView loadRequest:urlRequest];
  </code></pre>
  
  <p>since this link will send out some challenges...</p>
  
  <p>However, I managed to get the PDF raw data <code>NSURLConnection</code>(to be exact, I can get the data in the delegate method:</p>
  
  <pre><code>(void)connection:(NSURLConnection *)theConnection didReceiveData:(NSData *)data).
  </code></pre>
  
  <p>And then I want to know, how I can show this PDF? Does anyone has any idea? Thanks a lot!</p>