Linux recursively download files

I want to download all pdf files recursively from link "http://xx.yy.zz.ww/home/Documents/":

wget --restrict-file-names=nocontrol -r -np -nH --cut-dirs=1 --accept pdf http://xx.yy.zz.ww/home/Documents/

Never miss the slash / after the "Documents".

Explamation:

• Will download all files and subfolders in folder Documents directory
• -r: recursively
• np: not going to upper directories, such as home
• nH: not saving files to hostname folder
• --cut-dirs=1: saving all contents to folder Documents but omitting the one ancestor folder home
• -R "*index.html*": not used in this command, but typically useful, excluding all files match the pattern
• --reject jpg,png: Same to -R
• --accept pdf: Only download pdf files(the folders containing these files will not be abandoned)