Aperture is a Java framework for extracting and querying full-text content and metadata from various information systems (e.g. file systems, web sites, mail boxes) and the file formats (e.g. documents, images) occurring in these systems.

• Overview - What is Aperture?
• ProjectsUsingAperture - Who uses Aperture?
• Tutorials - How to get started, how to get things done
• ApertureExampleApplications - example applications showcasing the Aperture Functionality
• Documentation - How to get the most from Aperture
• GettingInvolved - How to get involved in making Aperture the best RDF extraction framework there is
• FAQ - Frequently asked questions
• Related Work - relevant projects, starting points for future work