title: Add multiple pages to new PDF using PIL/Pillow
body: <p><a href="http://pillow.readthedocs.org/en/3.0.x/handbook/image-file-formats.html#pdf" rel="nofollow">http://pillow.readthedocs.org/en/3.0.x/handbook/image-file-formats.html#pdf</a></p>
  
  <p>The Pillow docs mention being able to save multiple pages, but I can't find any other docs or code samples that tell you how to add pages to a new PDF.</p>