Documents
Tools that harvest or analyze metadata and content from documents and files.
Datashare
ICIJ's tool for indexing, searching and extracting entities from large document sets.
Open source
ExifTool
Extracts hidden metadata from images, documents, and media.
Open source
FOCA
Extracts hidden metadata and info from Office, PDF and image files.
Open source
Metagoofil
Harvests public documents from a domain and extracts their metadata.
Open source