title: Convert: Postscript delegate failed
body: <p>I am trying to convert a PDF to JPEG:</p>
  
  <pre><code>$ convert pdf-test.pdf pdf-test.pdf.jpg
  </code></pre>
  
  <p>However, I am getting this error:</p>
  
  <pre><code>convert: Postscript delegate failed `pdf-test.pdf': No such file or directory @ error/pdf.c/ReadPDFImage/664.
  convert: missing an image filename `pdf-test.pdf.jpg' @ error/convert.c/ConvertImageCommand/3015.
  </code></pre>
  
  <p>Currently I am using this version of GS and ImageMagick on Mac OS X Lion:</p>
  
  <pre><code>$ gs -v
  GPL Ghostscript 9.02 (2011-03-30)
  Copyright (C) 2010 Artifex Software, Inc.  All rights reserved.
  
  $ convert -version
  Version: ImageMagick 6.7.1-1 2011-07-21 Q16 http://www.imagemagick.org
  Copyright: Copyright (C) 1999-2011 ImageMagick Studio LLC
  Features: OpenMP
  </code></pre>
  
  <p>Can anybody enlighten me on this? </p>