"Unsupported Content-Type" with "206 Partial OK"

Hi all,

I have set up the pdf2text converter and basically it seems to work fine. However, sometimes when indexing the following shows up in the logs:

indexer[21124]: [21124]{01} URL: http://some.where/some/file/some-file.pdf
indexer[21124]: [21124]{01} Status: 206 Partial OK
indexer[21124]: [21124]{01} Starting external parser: 'pdftotext -q /tmp/ind.1.21124.in -'
indexer[21124]: [21124]{01} Parser not executed, document status: 206
indexer[21124]: [21124]{01} Unsupported Content-Type 'application/pdf'
indexer[21124]: [21124]{01} Guesser: 2709h:186m ru-cp866
indexer[21124]: [21124]{01} Guesser: 2709h:186m ru-utf-8
indexer[21124]: [21124]{01} Guesser: 2522h:187m ga-iso-8859-1
indexer[21124]: [21124]{01} Guesser: 2522h:187m hi-utf-8
indexer[21124]: [21124]{01} Guesser: 2334h:188m de-iso-8859-1
indexer[21124]: [21124]{01} Guesser: Lang: ru, Charset: cp866

I don't really understand what's wrong there. Probably the "unsupported content-type" is misleading me?

Can anybody explain what's going on?

Thanks!
-mp.