[Bug-wget] Downloading files with specific extensions

[Vikram Narayanan]

Just joined the list.
If I give a command, say
wget -r -A.pdf http://www.example.com
(My wish is to download all the files that has extension PDF)
Why does wget download all the files and reject the others except pdf's.
Isn't it a waste of bandwidth?
Is it not possible to check only the PDF files without downloading the 
whole content?

Thanks,
Vikram