Assuming that imagemagick is installed:
convert -quality 100 -density 600x600 multipage.pdf single%d.jpg
- The
-density option defines the
quality the pdf is rendered before
the convert > here 600dpi. For high
quality prints you can increase that
number.
- The %d just before the jpg
suffix is for automatic numbering of
the output pages 0,1,2...
- The
-quality option defines the compression quality of the output jpg
(0 min ... 100 max)
- The .jpg suffix
defines the output format. You could
use .png/.jpg/.pdf
From http://ubuntuforums.org/showpost.php?p=5560488&postcount=20