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Aultra Tools
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Open-source licences

Aultra Tools is built with the help of open-source software. We thank the authors and list each component and its licence below.

ComponentLicence
libheif (HEIC decoding), via libheif-js 1.23.5 LGPL-3.0
jSquash codecs (MozJPEG, libwebp, OxiPNG, PNG, resize) Apache-2.0 (with BSD/MIT/IJG/zlib components)
PDF.js Apache-2.0
pdf-lib (@cantoo fork) MIT
UPNG.js MIT
pako MIT and Zlib
fflate MIT
qrcode-generator MIT
qr (paulmillr) MIT or Apache-2.0
React MIT
Astro MIT
Space Grotesk font SIL Open Font License 1.1

LGPL notice for the HEIC decoder

HEIC photos are decoded with libheif, which is licensed under the GNU Lesser General Public License v3.0. It is served unmodified as separate files at /vendor/libheif/ (licence text), so it can be replaced with another compatible build. The source code is available from the libheif project and the libheif-js build (version 1.23.5).