For me, "file:pdf" returns .pdfs, .pdf documentation, .pdf information...all kinds of things which aren't .pdf. "filetype:pdf" seems to be the only command whi

For me, "file:pdf" returns .pdfs, .pdf documentation, .pdf information...all kinds of things which aren't .pdf. "filetype:pdf" seems to be the only command which reliably returns just .pdfs. I'm in the UK, your mileage may vary.