Can I restore files of only certain type automatically?

I have lot of PDF files and while I can restore them by using tree view, I need to search it manually. Is there some option or command line tool that can restore only PDF files automatically?

For example like a command with params I can send?

I don't know about command line, but entering .pdf in the Filename or Path box (Advanced Mode) will separate the pdf's from the chaff, and you can recover from there.