title: XML Character <Unicode: 0xc> was found in the element content of the document
body: <p>I am generating pdf from a SQL query on a java app.
  I have 4M pdf to print.</p>
  
  <p>On the 15092th pdf.
  I am encountering this error</p>
  
  <pre><code>Invalid xml character (unicode 0xc) was found in the element content of the document
  </code></pre>
  
  <p>I tried to replace as what other blogs are saying.</p>
  
  <pre><code>    html = html.replaceAll("\000"," ");
      html = html.replaceAll("/\u000c+/g", "");
  </code></pre>
  
  <p>I don't know which is which I just placed them to my html.</p>
  
  <p>Anyone with an idea?</p>
  
  <p>Thanks!</p>