title: Opening a PDF file and searching for names there
body: <p>I have a PDF file. And I want to search for names there.</p>
  
  <ol>
  <li>How can I open the PDF and get all its text with Ruby?</li>
  <li>Are there are any algorithms to find names?</li>
  <li>What should I use as a search engine: Sphinx or something simpler (just LIKE sql queries)?</li>
  </ol>