metagoofil

metagoofil -d <domain> -t pdf,docx

Download documents from a domain via search engines and extract their metadata.

To automate the search and analysis of metadata from public documents. metagoofil searches Google for files from a domain, downloads them, and extracts the information. It is useful for automatically obtaining usernames, systems, and software versions.

If the search engine returns captchas or if the domain has no indexed documents. Also, if you already have the documents manually downloaded, better use FOCA or exiftool.