> from ukulelehunt.com and all its subpages.I've used in
> filters this option:
> -* +mime:text/html +*.pdf
> 
> I've set the maximum depth to 20,the external one to
> 2.The browser identity is
I don't know why you set external to 2. Last I heard external was broken -
won't stop.

-* +mime:text/html +*.pdf should have worked. 

All the pages below main are full references with a trailing slash, e.g.
<http://ukulelehunt.com/privacy-policy/> With the log on debug all pages are
rejected (-*) 

It should have checked the mime type and accepted it. Another bug for Xavier.

I added an extra filter to the end, allow ending slash urls: +*/*[]
and the pdfs started downloading.