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License and asset attribution

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The documentation, example code, and visual assets in this handbook are covered by different licenses. The split below helps you see what you can reuse freely and what requires attribution.

Subject License
Documentation and original visual assets CC BY 4.0
Example code and site source MIT
Third-party test assets (Fixtures) Own license and attribution recorded individually

CC BY 4.0 (Creative Commons Attribution 4.0)

Section titled “CC BY 4.0 (Creative Commons Attribution 4.0)”

Applies to the documentation text and original visual assets. It permits copying, distribution, and adaptation as long as you give appropriate credit and note any changes. This is a permissive attribution-required license, not public domain.

Applies to example code and related source files. MIT is permissive and allows commercial and free redistribution, requiring that the copyright notice and license text be kept.

  • This project uses maintainer-owned photography or programmatically generated test assets by default (such as input.jpg and SVG test graphics).
  • Any third-party asset records its own source, license, and required attribution separately, and does not default to the CC BY 4.0 / MIT terms.
  • Images of unverified provenance are not adopted in this handbook.
  • When reusing documentation, keep the attribution and link to the source.
  • When reusing example code, keep its MIT copyright notice.
  • When using an image that carries a separate third-party license note, follow its original license terms.
  • If you have questions about the provenance or attribution of a particular asset, contact the maintainers via mailto:support@webp.se.