MuraTools A Murabyte Product

Open Source Notices

License notices and corresponding source for components distributed by MuraTools.

Review status: These materials document the selected components and source provenance. They are not a legal opinion or a representation that every distribution obligation has been fulfilled. Distribution remains subject to final legal review.

HEIC to JPG — Tool #6

The tool uses @su-engineering/heic@0.2.0 (MIT) and, only when needed, the separately served libheif-js@1.23.5 decoder (LGPL-3.0), built from libheif 1.23.5 and libde265 1.0.15 using Emscripten 3.1.61. The browser loads decoder JavaScript and WebAssembly as separate same-origin files, so a compatible modified pair can be substituted without rebuilding the MuraTools application.

Build and replacement

Verify downloaded runtime/source files against the published SHA-256 manifest.

The pinned upstream build workflow uses Ubuntu 22.04, Emscripten 3.1.61, Node.js 24 and TypeScript 5; build-emscripten.sh defaults to libde265 1.0.15. The source archives above preserve the tagged build wrapper and exact source revisions. To rebuild, unpack the three source archives, populate the libheif submodule directory from the supplied libheif archive, install the pinned Emscripten SDK, then run the upstream build-emscripten.sh with USE_WASM=1, USE_TYPESCRIPT=1, and USE_UNSAFE_EVAL=0; follow the v1.23.5 emscripten workflow and dist-prep.sh wasm. Replace libheif.js and libheif.wasm together at /vendor/heic/, retaining the same filenames and compatible Emscripten module interface. The web application and its adapter remain separate and unchanged. Rebuilding and byte-for-byte reproducibility have not been demonstrated in this Windows environment.

The corresponding tool application code is available in the site source: Tool #6 application source bundle. It contains the HEIC page/module and the associated image-format helper. For purposes of enabling modification/relinking with a compatible decoder, that bundle is offered under the MIT License; see its included license and source manifest. This offer is specific to the bundled Tool #6 source and does not relicense the rest of MuraTools.

PDF Compressor — PDF.js

PDF Compressor uses pdfjs-dist@5.4.394 (Apache-2.0) only for the optional Medium and High rasterization paths. PDF.js and its worker are loaded lazily from same-origin built assets. The PDF.js license text is available here. Low uses the existing @cantoo/pdf-lib@2.11.1 (MIT) dependency.

License texts and notices

Source offers, notices, attribution, license compatibility, and any further installation or relinking information remain subject to final legal review. The HEIC converter does not send input photos to a server.