title: Handling pdf documents when crawling using scrapy
body: <p>I want to parse PDF documents that are encountered while crawling sites using scrapy. I am using the below code to extract HTML page source from PDF document but its not working</p>
  
  <pre><code>a = response.xpath("//html").extract()
  </code></pre>
  
  <p>How can I get the content from the PDF documents and incorporate that to scrapy workflow? </p>