title: Nutch 2.x: Passing information from one WebPage to another for indexing with elasticsearch
body: <p>I'm using Nutch 2.x to crawl a domain where each html page has a link to a pdf document. </p>
  
  <ol>
  <li>For each html page, I use a plugin to extract information and add it to the metadata.</li>
  <li>For each pdf document, the tika parser extracts the text.</li>
  </ol>
  
  <p>What I want to do is to join the data extracted from an html page and the text of the corresponding pdf document and index all of it with elasticsearch.  </p>
  
  <p>I thought of doing this when parsing or indexing a pdf by accessing the WebPage of the corresponding html page but I couldn't find a way to do it.</p>
  
  <p>Is this feasible? If not I'd appreciate any suggestions. </p>
  
  <p>Thank you!      </p>