title: MPDF background-image is too small
body: <p>I'm using a background image in a div, but the pdf shows the image shrunken to about 50%.  Is there a setting I'm missing?  I tried adjusting the dpi, but it didn't help.</p>
  
  <pre><code>&lt;div style="background-image: url(https://rooster/proxy.php?file=1Q73u872H%2Fi%2Fc1.jpg);background-repeat: no-repeat; background-position: 37px 26px; height:365px; width:456px; background-size:419px 339px;"&gt;&lt;/div&gt;
  </code></pre>