title: MPDF always gives 500 Internal Server Error
body: <p>I've looked at multiple tutorials on the matter and apparently MPDF is a simple as can be.</p>
  
  <pre><code>&lt;?php 
    require_once('tools/mpdf.php');
    $mpdf = new mPDF();
    $mpdf-&gt;WriteHTML('&lt;p&gt;Your first taste of creating PDF from HTML&lt;/p&gt;');
  
    $mpdf-&gt;Output();
    exit;
  ?&gt;
  </code></pre>
  
  <p>Obviously I'm going to build on top of this but I can't even get the basics working for some reason. All I get is a "500 Internal Server Error". I've stripped the file down to just</p>
  
  <pre><code>&lt;?php 
    require_once('tools/mpdf.php');
  ?&gt;
  </code></pre>
  
  <p>And I get that error. I've ensured that the mpdf.php file is in the tools directory and properly loaded onto my server, so there's no issue there.. </p>
  
  <p>Any ideas?</p>