Contribute to the Commons
Upload a PDF to make it freely available to everyone, forever. No account required — just a file, a title, and a brief description of why it matters.
Requirements
- Text-based PDF only — image-only scans cannot be searched or indexed. If you only have a scan, note it in the description.
- No duplicates — if the same source exists, we'll link you to it instead of creating a new entry.
- Open access content — this is a commons for freely available sources. Don't upload copyrighted paywalled content.
- Once uploaded, it's permanent — sources are never removed from the commons.