Here is my setting

1.) Mirroring Mode 
    Action - Get separated files
    Web Addresses - <http://tds.as/kundeftp/tdstouch/>

2.) Set Options:
    Scan Rules - +*.pdf
    Links - Get non-html files related to a link, eg external .zip or pictures
(checked)

After it scans the site, I dont see the pdf files. Just the html files.. Any
replies is much appreciated.. thank you..