Have you ever wanted to search for a particular filetype, such as a PDF file, and spent much time sifting through results to find PDF’s?

Google’s “filetype” modifier allows you to search for one specific filetype in results. Simply type in the query as you normally would and add the phrase “filetype:XXX” where “XXX” is the filetype that you wish to search for. For example, to find the Marbury v. Madison decision in PDF format, search for “Marbury Madison filetype:pdf.”