Open Knowledge

Open Data Commons Public Domain Dedication and License (PDDL) Summary

This is a human-readable summary of the Public Domain Dedication and License 1.0. Please see the disclaimer below.

You are free:

  • To share: To copy, distribute and use the database.
  • To create: To produce works from the database.
  • To adapt: To modify, transform and build upon the database.

As long as you:

  • Blank: This section is intentionally left blank. The PDDL imposes no restrictions on your use of the PDDL licensed database.


This is not a license. It is simply a handy reference for understanding the PDDL 1.0 — it is a human-readable expression of some of its key terms. This document has no legal value, and its contents do not appear in the actual license. Read the full PDDL 1.0 license text for the exact terms that apply.