License Summary Terms & Conditions How to Apply

License Summary in Simple Terms

Before diving into the legal text, here is a breakdown of what the ImageMagick license allows, forbids, and requires.

What it Allows

Freely download and use software for personal, internal, or commercial purposes.
Use software in packages or distributions you create.
Link against libraries under different licenses (and vice-versa).
Merge code into works under different licenses and extend patent grants.

What it Forbids

Redistribute any piece of ImageMagick-originated software without proper attribution.
Use ImageMagick Studio LLC marks to imply endorsement of your distribution.
Imply that you created the original ImageMagick software.

What it Requires

Include a copy of the license in any redistribution containing ImageMagick.
Provide clear attribution to ImageMagick Studio LLC.

Key Clarifications

Software is freely available without charge.
Compatible with the GPL v3.
Source code of modifications is not required to be redistributed.
Check export classification when exporting software.

Terms and Conditions for Use, Reproduction, and Distribution

1. Definitions

License shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document.

Licensor shall mean the copyright owner or entity authorized by the copyright owner that is granting the License.

Legal Entity shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity.

You (or Your) shall mean an individual or Legal Entity exercising permissions granted by this License.

Source form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files.

Object form shall mean any form resulting from mechanical transformation or translation of a Source form.

Work shall mean the work of authorship, whether in Source or Object form, made available under the License.

Derivative Works shall mean any work based on (or derived from) the Work.

Contribution shall mean any work of authorship intentionally submitted to Licensor for inclusion in the Work.

Contributor shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received.

2. Grant of Copyright License

Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form.

3. Grant of Patent License

Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable patent license to make, use, sell, and import the Work. If You institute patent litigation alleging that the Work constitutes patent infringement, licenses granted to You under this License shall terminate as of the date such litigation is filed.

4. Redistribution

You may reproduce and distribute copies of the Work or Derivative Works thereof, provided that You meet the following conditions:

Give any other recipients a copy of this License.
Cause modified files to carry prominent notices stating that You changed the files.
Retain copyright, patent, trademark, and attribution notices in Source form.
Include a readable copy of attribution notices within a NOTICE text file or documentation if included.

You may add Your own copyright statement and additional or different license terms for your modifications.

5. Submission of Contributions

Unless explicitly stated otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions.

6. Trademarks

This License does not grant permission to use trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work.

7. Disclaimer of Warranty & 8. Limitation of Liability

Unless required by applicable law or agreed to in writing, Licensor provides the Work on an AS IS BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND.

In no event shall any Contributor be liable to You for damages, including direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the Work.

How to Apply the License to your Work

To apply the ImageMagick License to your work, attach the following boilerplate notice, replacing the bracketed fields with your own identifying information:

   Copyright [yyyy] [name of copyright owner]

   Licensed under the ImageMagick License (the "License"); you may not use
   this file except in compliance with the License.  You may obtain a copy
   of the License at

     https://imagemagick.org/license/

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
   License for the specific language governing permissions and limitations
   under the License.