title: Extract PDF text by coordinates
body: <p>I'd like to know if there's some PDF library in Microsoft .NET being able of extracting text by giving coordinates. </p>
  
  <p>For example (<em>in pseudo-code</em>):</p>
  
  <pre><code>PdfReader reader = new PdfReader();
  reader.Load("file.pdf");
  
  // Top, bottom, left, right in pixels or any other unit
  string wholeText = reader.GetText(100, 150, 20, 50);
  </code></pre>
  
  <p>I've tried to do so using PDFBox for .NET (that one working on top of IKVM) with no luck, and it seems to be very outdated and undocumented.</p>
  
  <p>Perhaps anyone has a good sample of doing so with PDFBox, iTextSharp or any other open-sourced library, and he/she can give me a hint.</p>
  
  <p>Thank you in advance.</p>