FOCA (Fingerprinting organizations with collected archives) is an open-source software that allows you to perform basic metadata analyses. This is a popular tool used by attackers because you can download any files and pull meta data out in a user friendly format. Metadata and hidden information within numerous documents that this software scans can extracted and analyzed. With this tool, you can determine whether or not a specific website contain corrupted documents or even get useful information from metadata to include authors of the documents.
Lot of formats are supported like documents and pdfs and the results are collated in a user-friendly format, so it is easy to uncover lot of details and consume it. You can easily download documents that exists on webpages and scan it for metadata and cross reference files with other domains like google and bing as well. It is a completely free tool that can be used with other footprinting methods like dissecting HTML code or pulling detail from whoisrecords and SEC filings.
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