Licensing
This page explains how FEZdocs and FEZtool open-source projects can be used, modified, and redistributed.
FEZdocs is licensed under the Apache License 2.0. The full legal text is available in the repository LICENSE file and from the official Apache Software Foundation license page:
Overview
FEZdocs and the FEZtool ecosystem are built as open-source resources for remote sensing, geospatial analysis, image processing, and scientific computing.
The Apache License 2.0 allows broad use of the project while preserving attribution, license notices, and contributor protections. It is suitable for personal, academic, research, internal, and commercial projects.
What is the Apache License 2.0?
The Apache License 2.0 is a permissive open-source license. It grants users significant freedom while adding clear requirements around attribution, redistribution, patents, trademarks, and warranty limitations.
Key points:
- Use: You may use FEZdocs and Apache-licensed FEZtool code in personal, academic, public, private, and commercial projects.
- Modify: You may adapt, extend, or customize the source for your own workflows.
- Distribute: You may redistribute original or modified versions, including inside larger projects.
- Patent grant: Contributors provide a patent license for patent claims necessarily infringed by their contributions, subject to the license terms.
- Attribution: Redistributed copies must include the Apache License 2.0 text and preserve applicable copyright, license, patent, trademark, and attribution notices.
- Change notices: If you modify files and redistribute them, you must include prominent notices that the files were changed.
- No warranty: The software and documentation are provided as-is, without warranties or guarantees.
Why Apache 2.0 for FEZtool?
Apache 2.0 fits FEZtool because the ecosystem is intended to support research, production workflows, and long-term open-source collaboration.
The license is a good match because it:
- Supports both open and commercial use.
- Encourages adoption in research and industry environments.
- Gives contributors and users clearer patent protections than simpler permissive licenses.
- Keeps redistribution rules understandable for libraries, documentation, examples, and derived tools.
- Preserves attribution to FEZteam and contributors.
Using FEZtool in Your Projects
You can use FEZdocs and Apache-licensed FEZtool projects in:
- Personal learning projects
- Academic research
- Internal company tools
- Commercial products and services
- Open-source applications
- Documentation, tutorials, and examples
When redistributing FEZdocs, FEZrs, or derivative works, keep these requirements in mind:
- Include a copy of the Apache License 2.0.
- Preserve existing copyright and attribution notices.
- Mark modified files when you redistribute changed versions.
- Include any required
NOTICEfile content if a project provides one. - Do not imply FEZteam endorsement of your project unless permission is explicitly granted.
Contributions to FEZtool
Unless stated otherwise, contributions submitted to FEZtool projects are accepted under the Apache License 2.0.
By contributing, you agree that your contribution can be included and distributed under the same license terms as the project. This keeps the ecosystem consistent and easier for users to adopt.
Trademark and Branding
Apache 2.0 does not grant permission to use FEZtool or FEZteam names, logos, marks, or branding as your own product identity.
You may use the names in a reasonable descriptive way, such as:
- "Built with FEZrs"
- "Documentation for a FEZtool workflow"
- "Uses FEZdocs examples"
Do not present an independent project as officially maintained, sponsored, or endorsed by FEZteam unless that relationship exists.
Questions and Comments
For licensing questions, project usage questions, or attribution concerns, contact FEZteam:
- Website: feztool.com
- Email: info@feztool.com
- GitHub: FEZtool-team
Legal Disclaimer
This page is a practical summary for documentation purposes. It is not legal advice. For legal decisions about using, redistributing, or modifying FEZtool projects, review the full Apache License 2.0 text and consult a qualified legal professional when needed.

