PDF's: Content Identical

Hello,

I've just started using the perlfect search, and have found it very helpful.  Indexing and searching works great, however, when I've tried to include pdf's into the indexing process, I don't get the expected results.  The first pdf file is fetched and processed, but the remaining pdf's are all ignored (line items included below).  I also cannot find the first (supposedly indexed) pdf in the search results.  I most likely have some setting incorrect, but I can't find it.  Any help would be appreciated.

Thanks,
Charles
http://www.nitterhouse.com


The first pdf file encountered:
Fetched  'http://www.nitterhouse.com/DrawingSpecs/DrawingSpecsSub/PDFs/Panel%20Connections/PC_AngleTieBackBearing02.pdf', 186964 bytes
    13: http://www.nitterhouse.com/DrawingSpecs/DrawingSpecsSub/PDFs/Panel%20Connections/PC_AngleTieBackBearing02.pdf (182.58 KB)

All remaining pdf files:
Ignoring 'http://www.nitterhouse.com/DrawingSpecs/DrawingSpecsSub/PDFs/Panel%20Connections/PC_AngleTieBackBearing01.pdf': content identical to 'http://www.nitterhouse.com/DrawingSpecs/DrawingSpecsSub/PDFs/Panel%20Connections/PC_AngleTieBackBearing02.pdf'