title: How can selection be disabled in PDFView?
body: <p>Displaying a <code>PDFDocument</code> in a <code>PDFView</code> allows the user to select parts of the document and perform actions e.g. "copy" with the selection.
  How can selection be disabled in a PDFView while preserving the possibility for the user to zoom in and out and scroll in the PDF?</p>
  
  <p><code>PDFView</code> itself does not seem to offer such a property nor does the <code>PDFViewDelegate</code>.</p>