Creative Commons Attribution-ShareAlike 4.0

SPDX Identifier: CC-BY-SA-4.0

SPDX Page: https://spdx.org/licenses/CC-BY-SA-4.0.html

Quick Summary

The CC-BY-SA 4.0 license allows free use, modification, and distribution with attribution. Derivative works must be licensed under the same terms. Commonly used for fonts with design contributions from multiple sources.

Permissions Overview

✅ Allows For

Context	Permission	Notes
Academic	✅ Full	With attribution
Non-commercial	✅ Full	With attribution
Commercial (Static)	✅ Full	PDFs, images, printed materials with attribution
Commercial (Server)	✅ Full	CI/CD, document generation with attribution
Web (Hosting)	✅ Full	With attribution
Desktop	✅ Full
Server/CI	✅ Full
Redistribution	✅ Full	With attribution and same license
Modification	✅ Full	Must use CC-BY-SA license
Format Conversion	✅ Full

⚠️ Conditional

Permission	Condition
Any use	Must provide attribution
Derivative works	Must use CC-BY-SA license

❌ Disallows For

Permission	Notes
Use without attribution	Attribution required
Proprietary derivatives	Cannot change to more restrictive license

See Also

• CC BY-SA 4.0 License
• Creative Commons License Chooser