SnapSlim — Third-Party Notices
================================

SnapSlim 1.0.0

This product includes third-party software incorporated into or distributed
with the following components:

- Contents/MacOS/snapslim-engine
- Contents/MacOS/mozjpeg/cjpeg
- Contents/MacOS/mozjpeg/djpeg
- Contents/MacOS/codecs/png/oxipng

SnapSlim also bundles first-party helper programs that use Apple system
frameworks only (not listed as third-party software below):

- Contents/MacOS/codecs/heic/heic-imageio-helper
- Contents/Resources/jpeg-imageio-helper

Component names, copyright holders, and license texts below are reproduced
from the respective upstream distributions. Section headings are added for
navigation.


--- Go standard library (snapslim-engine) ---

The snapslim-engine binary is built with the Go toolchain and incorporates
the Go standard library.

Go toolchain version recorded in the distribution binary (build metadata):
go1.26.3

Copyright 2009 The Go Authors.


Copyright 2009 The Go Authors.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

   * Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
   * Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
   * Neither the name of Google LLC nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.



--- github.com/chai2010/webp v1.1.1 (Go module, snapslim-engine) ---

The snapslim-engine binary statically links github.com/chai2010/webp v1.1.1.

Module license (upstream tag v1.1.1; `{AT}` expanded to `@`, endorsement
clause normalized for plain text):


Copyright (c) 2014 chaishushan@gmail.com.
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

   * Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
   * Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
   * Neither the name of the copyright holders nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.



--- Bundled libwebp source (via github.com/chai2010/webp v1.1.1) ---

The chai2010/webp module vendors C libwebp source under internal/libwebp/.
An independent upstream libwebp release version tag is not recorded in the
module tree; the bundled COPYING file below is the license text shipped with
that source tree.


Copyright (c) 2010, Google Inc. All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

  * Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.

  * Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in
    the documentation and/or other materials provided with the
    distribution.

  * Neither the name of Google nor the names of its contributors may
    be used to endorse or promote products derived from this software
    without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.



--- MozJPEG 4.1.5 (mozilla/mozjpeg, bundled cjpeg and djpeg) ---

Upstream: https://github.com/mozilla/mozjpeg
Release tag: v4.1.5

MozJPEG is based on libjpeg-turbo and the Independent JPEG Group (IJG)
reference implementation.

Independent JPEG Group acknowledgment (required for binary distributions):

This software is based in part on the work of the Independent JPEG Group.

Upstream LICENSE.md (libjpeg-turbo license roll-up):


libjpeg-turbo Licenses
======================

libjpeg-turbo is covered by three compatible BSD-style open source licenses:

- The IJG (Independent JPEG Group) License, which is listed in
  [README.ijg](README.ijg)

  This license applies to the libjpeg API library and associated programs
  (any code inherited from libjpeg, and any modifications to that code.)

- The Modified (3-clause) BSD License, which is listed below

  This license covers the TurboJPEG API library and associated programs, as
  well as the build system.

- The [zlib License](https://opensource.org/licenses/Zlib)

  This license is a subset of the other two, and it covers the libjpeg-turbo
  SIMD extensions.


Complying with the libjpeg-turbo Licenses
=========================================

This section provides a roll-up of the libjpeg-turbo licensing terms, to the
best of our understanding.

1.  If you are distributing a modified version of the libjpeg-turbo source,
    then:

    1.  You cannot alter or remove any existing copyright or license notices
        from the source.

        **Origin**
        - Clause 1 of the IJG License
        - Clause 1 of the Modified BSD License
        - Clauses 1 and 3 of the zlib License

    2.  You must add your own copyright notice to the header of each source
        file you modified, so others can tell that you modified that file (if
        there is not an existing copyright header in that file, then you can
        simply add a notice stating that you modified the file.)

        **Origin**
        - Clause 1 of the IJG License
        - Clause 2 of the zlib License

    3.  You must include the IJG README file, and you must not alter any of the
        copyright or license text in that file.

        **Origin**
        - Clause 1 of the IJG License

2.  If you are distributing only libjpeg-turbo binaries without the source, or
    if you are distributing an application that statically links with
    libjpeg-turbo, then:

    1.  Your product documentation must include a message stating:

        This software is based in part on the work of the Independent JPEG
        Group.

        **Origin**
        - Clause 2 of the IJG license

    2.  If your binary distribution includes or uses the TurboJPEG API, then
        your product documentation must include the text of the Modified BSD
        License (see below.)

        **Origin**
        - Clause 2 of the Modified BSD License

3.  You cannot use the name of the IJG or The libjpeg-turbo Project or the
    contributors thereof in advertising, publicity, etc.

    **Origin**
    - IJG License
    - Clause 3 of the Modified BSD License

4.  The IJG and The libjpeg-turbo Project do not warrant libjpeg-turbo to be
    free of defects, nor do we accept any liability for undesirable
    consequences resulting from your use of the software.

    **Origin**
    - IJG License
    - Modified BSD License
    - zlib License


The Modified (3-clause) BSD License
===================================

Copyright (C)2009-2023 D. R. Commander.  All Rights Reserved.

Copyright (C)2015 Viktor Szathmáry.  All Rights Reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

- Redistributions of source code must retain the above copyright notice,
  this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice,
  this list of conditions and the following disclaimer in the documentation
  and/or other materials provided with the distribution.
- Neither the name of the libjpeg-turbo Project nor the names of its
  contributors may be used to endorse or promote products derived from this
  software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.


Why Three Licenses?
===================

The zlib License could have been used instead of the Modified (3-clause) BSD
License, and since the IJG License effectively subsumes the distribution
conditions of the zlib License, this would have effectively placed
libjpeg-turbo binary distributions under the IJG License.  However, the IJG
License specifically refers to the Independent JPEG Group and does not extend
attribution and endorsement protections to other entities.  Thus, it was
desirable to choose a license that granted us the same protections for new code
that were granted to the IJG for code derived from their software.



--- README.ijg (Independent JPEG Group legal terms, mozjpeg 4.1.5) ---


LEGAL ISSUES, below.

This software is the work of Tom Lane, Guido Vollbeding, Philip Gladstone,
Bill Allombert, Jim Boucher, Lee Crocker, Bob Friesenhahn, Ben Jackson,
Julian Minguillon, Luis Ortiz, George Phillips, Davide Rossi, Ge' Weijers,
and other members of the Independent JPEG Group.

IJG is not affiliated with the ISO/IEC JTC1/SC29/WG1 standards committee
(also known as JPEG, together with ITU-T SG16).


DOCUMENTATION ROADMAP
=====================

This file contains the following sections:

OVERVIEW            General description of JPEG and the IJG software.
LEGAL ISSUES        Copyright, lack of warranty, terms of distribution.



--- Oxipng 10.1.1 (bundled PNG optimizer, Contents/MacOS/codecs/png/oxipng) ---

Upstream: https://github.com/oxipng/oxipng
Release tag: v10.1.1


The MIT License (MIT)
Copyright (c) 2016 Joshua Holmer

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.



--- Oxipng 10.1.1 — Rust dependency licenses (production release binary) ---

The following table lists Rust crates linked into the bundled oxipng 10.1.1
release binary built for macOS arm64 with default crate features
(binary, parallel, zopfli), resolved from Cargo.lock v10.1.1 and license
metadata from crates.io (2026-08-03).

Build-time-only crates (for example cc, pkg-config) and dev-only crates
(for example serde_json) are excluded. Optional non-default crates (for
example image, glob on non-Windows targets) are excluded.

For crates published under "MIT OR Apache-2.0" (or similar dual licenses),
you may use either license per the upstream crate terms.

name	version	license (crates.io)

anstream	1.0.0	MIT OR Apache-2.0
anstyle	1.0.14	MIT OR Apache-2.0
anstyle-parse	1.0.0	MIT OR Apache-2.0
anstyle-query	1.1.5	MIT OR Apache-2.0
bitvec	1.0.1	MIT
bumpalo	3.20.2	MIT OR Apache-2.0
bytemuck	1.25.0	Zlib OR Apache-2.0 OR MIT
cfg-if	1.0.4	MIT OR Apache-2.0
clap	4.6.1	MIT OR Apache-2.0
clap_builder	4.6.0	MIT OR Apache-2.0
clap_lex	1.1.0	MIT OR Apache-2.0
colorchoice	1.0.5	MIT OR Apache-2.0
crc32fast	1.5.0	MIT OR Apache-2.0
crossbeam-deque	0.8.6	MIT OR Apache-2.0
crossbeam-epoch	0.9.18	MIT OR Apache-2.0
crossbeam-utils	0.8.21	MIT OR Apache-2.0
either	1.15.0	MIT OR Apache-2.0
env_filter	1.0.1	MIT OR Apache-2.0
env_logger	0.11.10	MIT OR Apache-2.0
equivalent	1.0.2	Apache-2.0 OR MIT
funty	2.0.0	MIT
hashbrown	0.17.0	MIT OR Apache-2.0
indexmap	2.14.0	Apache-2.0 OR MIT
is_terminal_polyfill	1.70.2	MIT OR Apache-2.0
libdeflate-sys	1.25.2	Apache-2.0
libdeflater	1.25.2	Apache-2.0
log	0.4.29	MIT OR Apache-2.0
oxipng	10.1.1	MIT
parse-size	1.1.0	MIT
radium	0.7.0	MIT
rayon	1.12.0	MIT OR Apache-2.0
rayon-core	1.13.0	MIT OR Apache-2.0
rgb	0.8.53	MIT
rustc-hash	2.1.2	Apache-2.0 OR MIT
simd-adler32	0.3.9	MIT
strsim	0.11.1	MIT
tap	1.0.1	MIT
terminal_size	0.4.4	MIT OR Apache-2.0
utf8parse	0.2.2	Apache-2.0 OR MIT
wyz	0.5.1	MIT
zopfli	0.8.3	Apache-2.0
