UnboundPDF - Third-Party Software Notices ========================================= UnboundPDF (https://unboundpdf.com) runs entirely in your browser and is built on the open-source libraries listed below. Each library is the property of its respective authors and is included under the terms of its own license, which is reproduced or referenced in this file. We are grateful to these projects. Last updated: 2026-07-14 Notes on this file: * "Version" is given only where it could be determined from the bundled file; otherwise it is marked "not determinable from bundle". * Several libraries are minified and ship without a license header; for those, the license type and copyright holder are stated from the upstream project's published license. Full, authoritative texts live in each project's repository, linked below. ------------------------------------------------------------------------------- 1. pdf-lib ------------------------------------------------------------------------------- Homepage: https://github.com/Hopding/pdf-lib License: MIT License Version: not determinable from bundle Copyright: Copyright (c) Andrew Dillon and pdf-lib contributors Used for: Reading, creating, and modifying PDF documents. Bundled sub-components: - @pdf-lib/fontkit (MIT) - font parsing and embedding - pako (MIT), fflate (MIT) - compression License text: see "MIT License" below. ------------------------------------------------------------------------------- 2. PDF.js (pdfjs-dist) ------------------------------------------------------------------------------- Homepage: https://github.com/mozilla/pdf.js License: Apache License, Version 2.0 Version: 3.11.174 (from the bundled worker's apiVersion string) Copyright: Copyright 2023 Mozilla Foundation Used for: Rendering and previewing PDF pages in the browser. License text: see "Apache License, Version 2.0" below. Header found in the bundled file: "Copyright 2023 Mozilla Foundation Licensed under the Apache License, Version 2.0 (the 'License'); you may not use this file except in compliance with the License." ------------------------------------------------------------------------------- 3. Tesseract.js ------------------------------------------------------------------------------- Homepage: https://github.com/naptha/tesseract.js License: Apache License, Version 2.0 Version: 5.1.1 Copyright: Copyright (c) Tesseract.js contributors Used for: Optical character recognition (OCR) - recognizing text in scanned documents and images, in the browser. Bundled/vendored sub-components (all served from unboundpdf.com, no CDN): - tesseract.js-core 5.1.1 (Apache-2.0) - the WASM OCR engine (tesseract-core-simd-lstm and tesseract-core-lstm variants) - eng.traineddata (Apache-2.0) - English language data, from the Tesseract OCR project / tessdata (Copyright Google Inc. and Tesseract contributors), https://github.com/tesseract-ocr/tessdata Note: On first use the OCR engine (~24 MB) loads from unboundpdf.com and is cached by your browser; it is NO LONGER fetched from a third-party CDN. Your document image is NOT uploaded; recognition runs entirely on your device. License text: see "Apache License, Version 2.0" below. ------------------------------------------------------------------------------- 4. Mammoth (mammoth.js) ------------------------------------------------------------------------------- Homepage: https://github.com/mwilliamson/mammoth.js License: BSD 2-Clause "Simplified" License Version: not determinable from bundle Copyright: Copyright (c) Michael Williamson Used for: Converting Word (.docx) documents to HTML during Word-to-PDF conversion. Bundled sub-components: - JSZip (dual-licensed: MIT OR GPL-3.0) - Copyright (c) Stuart Knightley and JSZip contributors - pako (MIT) - decompression License text: see "BSD 2-Clause License" below. ------------------------------------------------------------------------------- 5. html2canvas ------------------------------------------------------------------------------- Homepage: https://github.com/niklasvh/html2canvas License: MIT License Version: 1.4.1 (from the bundled file header) Copyright: Copyright (c) 2022 Niklas von Hertzen and contributors Used for: Rendering HTML content to a canvas for HTML-to-PDF and related tools. Bundled sub-components: - tslib (0BSD) - Copyright (c) Microsoft Corporation License text: see "MIT License" below. Header found in the bundled file: "html2canvas 1.4.1 Copyright (c) 2022 Niklas von Hertzen Released under MIT License" =============================================================================== LICENSE TEXTS =============================================================================== The following are the standard texts for the license types referenced above. Where a license requires a copyright notice, the applicable holder is named in that library's entry above. MIT License ----------- 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. Apache License, Version 2.0 --------------------------- Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 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. The complete Apache License 2.0 text is available at: https://www.apache.org/licenses/LICENSE-2.0 BSD 2-Clause "Simplified" License --------------------------------- Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. 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. 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. 0BSD License (BSD Zero Clause, used by tslib) --------------------------------------------- Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. =============================================================================== About UnboundPDF's own code =============================================================================== The UnboundPDF website and its own application code are (c) 2026 UnboundPDF, built by Conxto. The notices in this file cover only the third-party open-source libraries that UnboundPDF bundles or loads. For questions about these notices, contact hello@unboundpdf.com.