Hi Jason,
Are you by any chance using the "graphical indexer" feature of PDF Indexer?
If so, it is possible that sometimes you get data that is partially outside of the indexing "rubber rectangle" you have specified.
I believe the PDF Indexer builds a "generic" indexer file based on the fields it finds in the PDF file. (Other forum experts will probably laugh at me and let you know if I'm wrong here
- that's OK, I can take it.
)
If not, I would guess that this may be due to invalid data being snuck into the document, such as a linefeed or other non-printable character in the middle of a field. This would invalidate the format of the generic indexer file that is auto-created and would cause such an error message.
When you have this message, have you looked in the arstmp folder, or whatever folder is used during indexing? You should be able to find the faulty *.ind file there, and you can manually look through it to check for errors. (You can find the valid format for indexing files in the CMOD docs online)
Hope this helps!
/Lars