yes, Verity, which comes bundled with cf can index PDF
documents easily.
(though the bundled version of Verity has limits on size of
collections
it can create: iirc it can index up to 250,000 items max; if
you need
more items indexed the you need to get a full license from
Verity [mucho
expensive, btw])
Azadi Saryev
Sabai-dee.com
http://www.sabai-dee.com/