Image codec notices / Avisos dos codecs de imagem The original Konvortak application remains proprietary. These separate, replaceable third-party libraries retain their own licenses. This application's restrictions do not limit your rights under those licenses, including replacing the libraries and reverse engineering for debugging modifications to them. HEIC/HEIF decoder: libheif 1.23.6 with libde265 1.0.16, supplied by heic-to 1.6.6. License: GNU LGPL version 3 or later. Full license: /vendor/heic/LICENSE.txt The unmodified CSP-compatible ES module is served as /vendor/heic/libheif.js. It is loaded dynamically by a dedicated local worker only for HEIC/HEIF images. It was built upstream with USE_UNSAFE_EVAL=0, USE_WASM=0 and LIBDE265_VERSION=1.0.16. No modifications to the library module have been made by Konvortak. Corresponding source archives, build scripts and wrapper sources: /vendor/heic/sources/libheif-1.23.6.tgz /vendor/heic/sources/libde265-1.0.16.tgz /vendor/heic/sources/heic-to-1.6.6.tgz The heic-to archive contains src/lib/libheif-without-unsafe-eval.js (the exact distributed module), src/worker.js, README.md and esbuild.mjs. The libheif archive contains build-emscripten.sh and the C/C++ source. Consult these build instructions before rebuilding. Keep the public HeifDecoder/ImageData API when replacing /vendor/heic/libheif.js with a modified build. Upstream: https://github.com/hoppergee/heic-to/tree/v1.6.6 https://github.com/strukturag/libheif/tree/v1.23.6 https://github.com/strukturag/libde265/tree/v1.0.16 Credits include Dirk Farin, Struktur AG, the libheif/libde265 contributors and Hopper Gee. Copyright and license notices in the source archives are retained. TIFF decoder: UTIF.js 3.1.0, MIT license, Copyright (c) 2017 Photopea. Unmodified library: /vendor/tiff/UTIF.js License: /vendor/tiff/UTIF-LICENSE.txt Source: https://github.com/photopea/UTIF.js TIFF decompression: pako 1.0.11, MIT and Zlib licenses. Unmodified library: /vendor/tiff/pako.js License: /vendor/tiff/pako-LICENSE.txt Source: https://github.com/nodeca/pako/tree/1.0.11 AVIF encoder: @jsquash/avif 2.1.1, Apache-2.0. Copyright Google Inc., Jamie Sinclair and contributors. Unmodified single-thread module and wasm: /vendor/avif/avif_enc.js and avif_enc.wasm. License: /vendor/avif/LICENSE.txt libavif 1.0.1 (BSD-2-Clause), libaom 3.7.0 (BSD-2-Clause and patent grant), libsharpyuv from libwebp e2c85878f6a33f29948b43d3492d9cdaf801aa54 (BSD-3-Clause), and Emscripten runtime notices: /vendor/avif/THIRD-PARTY.txt Source/build recipe: https://github.com/jamsinclair/jSquash/tree/main/packages/avif No HEVC encoder is included. This addition requires no paid library subscription. Static GIF encoder: gifenc 1.0.3, MIT, Copyright (c) 2017 Matt DesLauriers. Unmodified module: /vendor/gif/gifenc.js License: /vendor/gif/LICENSE.txt Source: https://github.com/mattdesl/gifenc TIFF output reuses the unmodified UTIF.js library above, with uncompressed 8-bit RGBA samples and the unassociated-alpha tag. BMP output is original application code, using uncompressed 24-bit pixels composited onto white. No uploaded files or names are sent to these upstream services. The libraries are served from this website and decoding runs in the visitor's browser. Interface font / Fonte da interface Inter (variable, latin and latin-ext subsets), supplied by @fontsource-variable/inter 5.3.0. Copyright 2016 The Inter Project Authors (https://github.com/rsms/inter). License: SIL Open Font License 1.1. Full license: /vendor/fonts/inter-LICENSE.txt Additional document conversion library: SheetJS Community Edition 0.20.3 -- https://sheetjs.com/ Copyright (C) 2012-present SheetJS LLC. Licensed under the Apache License, Version 2.0. Unmodified module with bundled SSF/CFB/CRC32 components and original notices. Full license: /vendor/sheetjs/LICENSE Official source distribution: https://cdn.sheetjs.com/xlsx-0.20.3/xlsx-0.20.3.tgz Browser OCR / OCR no navegador Tesseract.js 7.0.0 and tesseract.js-core 7.0.0, Apache License 2.0. Unmodified browser bundles and LSTM WebAssembly builds; original notices retained. Sources: https://github.com/naptha/tesseract.js/tree/v7.0.0 https://github.com/naptha/tesseract.js-core/tree/v7.0.0 Models: official tessdata_fast 4.1.0 por/eng, Apache License 2.0, unmodified. Source: https://github.com/tesseract-ocr/tessdata_fast/tree/4.1.0 Files are served locally under /vendor/ocr/; no CDN or remote OCR API is used. Complete license texts and copyright notices: /vendor/ocr/licenses/. Browser bundle notices: /vendor/ocr/tesseract.min.js.LICENSE.txt and /vendor/ocr/worker.min.js.LICENSE.txt. Bundled JS components: regenerator-runtime, zlib.js, bmp-js, is-url, buffer, base64-js (MIT), ieee754 (BSD-3-Clause), wasm-feature-detect and idb-keyval (Apache-2.0). The browser bundles preserve their own source license comments. Compiled core: Tesseract (Apache-2.0); Leptonica and TIFF (BSD-style); giflib (MIT); libpng (libpng license); WebP (BSD-3-Clause and patent grant); zlib (zlib license); libjpeg (IJG); OpenLibm runtime (MIT/BSD/ISC/public domain); Emscripten runtime (MIT). Full texts include copyright holders and conditions. OpenLibm LGPL test files are not part of the runtime builds shipped here. This software is based in part on the work of the Independent JPEG Group. The Graphics Interchange Format(c) is the Copyright property of CompuServe Incorporated. GIF(sm) is a Service Mark property of CompuServe Incorporated. No paid license, upload service or new remote storage is used by OCR. Audio encoder / Codificador de áudio LAME/lamejs 1.2.1, Copyright Alex Zhukov and the LAME/jump3r contributors. Package license: LGPL-3.0; earlier notices and terms remain in the source. Independent unmodified module: /vendor/audio/lame.all.js License texts: /vendor/audio/LGPL-3.0.txt and /vendor/audio/GPL-3.0.txt Upstream terms: /vendor/audio/UPSTREAM-LICENSE.txt Corresponding JavaScript source with unchanged JS modules and build recipes: /vendor/audio/sources/lamejs-1.2.1-js-source.tgz Upstream: https://github.com/zhuker/lamejs -- https://lame.sourceforge.io/ The archive includes makeall.sh/minify.sh (browserify concatenation, Java Closure compiler recipe), original comments, copyrights and license notices. Build from the JS sources for Mp3Encoder; the original MPGLib in the JS index is an empty stub, not an MP3 decoder. Unused Java reference code and test audio are omitted from this source bundle. The Java decoder is not compiled or loaded. Input decoding uses the browser. No library changes. The host worker calls the public lamejs.Mp3Encoder(channels, sampleRate,bitrate), encodeBuffer and flush methods from this separate file. Replacing that module with a compatible modified build does not require changing proprietary application modules. Modification/replacement and reverse engineering for debugging modifications to the LGPL library are permitted by its license; the proprietary notice does not restrict those rights. Keep its public API. WAV serialization, preflight and audio UI/DSP are original application code. No codecs, content, filenames or metadata are sent to an upstream service. Video containers / Contêineres de vídeo Mediabunny 1.61.6, Copyright (c) 2026-present Vanilagy and contributors. Mozilla Public License 2.0 (MPL-2.0). Separate unmodified library: /vendor/video/mediabunny.mjs License: /vendor/video/MPL-2.0.txt Original source package: /vendor/video/sources/mediabunny-1.61.6.tgz Upstream: https://github.com/Vanilagy/mediabunny/tree/v1.61.6 The source package includes the original TypeScript modules, license and bundles. You may use, obtain, modify and redistribute the covered library under MPL-2.0. The proprietary application notice does not restrict those rights. No upstream library files are modified; original application modules are separate files. Only local BufferSource inputs and MP4/QuickTime/WebM parsers are instantiated. Audio decoding uses the browser; resampling uses the library's public transform pipeline, followed by our WAV writer or the separately licensed LAME module. Muting requires packet copying and never enables video transcoding. No FFmpeg binary, third-party codec extension, online conversion or paid service is shipped. Type declarations @types/dom-webcodecs 0.1.13 and @types/dom-mediacapture-transform 0.1.12 are MIT, build/type dependencies only; their declaration code is not part of the browser runtime bundle.