title: add a full page image as the last page of reportlab
body: <p>I have a pdf I'm generating with reportlab. I'm rendering the document using the <code>SimpleDocTemplate</code> The first n pages are all the same but the last one is completely different (formatting and content) consisting of an image that should take up the whole page. When adding the image as a <code>Flowable</code> element I get an out of bounds error because it's too large for the defined page boundaries. </p>
  
  <p>I can render it fine using the canvas but then it appears on every page - does anyone have a suggestion for the best way to approach this? </p>
  
  <p>Thanks</p>