 &mdash; default:
              <tt>nil</tt>
            
          </span>
          
            &mdash; <div class='inline'>
<p>whether or not to enable mirrored margins (when facing pages is enabled) in
the document.</p>
</div>
          
        </li>
      
        <li>
          <span class="name">"orientation"</span>
          <span class="type">(<tt>String</tt>)</span>
          <span class="default">
            
              &mdash; default:
              <tt>&quot;PORTRAIT&quot;</tt>
          