CFINDEX: coldfusion.pdf.PDFDocException: PDFDoc Exception <p/> Created on Sep 12, 2006.

Hi,

While using CFINDEX to index the content of files with SOLR, I keep occasionally get this excpetion when indexing PDFs:

coldfusion.pdf.PDFDocException: PDFDoc Exception <p/> Created on Sep 12, 2006. 

I am not getting any other indication of what is actually causing the exception and I can not yet find a pattern in the PDFs that this is happening with.  It is not all PDFs or even most - it only occurs occasionaly.

Any ideas?  

We are currently on:

Thanks for any help.