Open-source software
Open-source components
MRKCAL Tools Core is distributed under GPL-3.0-or-later. Its browser tools use pdf-lib 1.17.1 (MIT), PDF.js 6.3.289 (Apache-2.0), fflate 0.8.3 (MIT), jsdiff 9.0.0 (BSD-3-Clause) and heic-to 1.6.6 (LGPL-3.0). They are loaded only where needed. qrcode (MIT), jsQR (Apache-2.0), UPNG.js / pako (MIT), Tesseract.js / Tesseract core / tessdata_fast (Apache-2.0).
Licenses and source
License texts are available with the downloadable component notices below. The HEIC component includes libheif 1.23.6 and libde265 1.0.16. Corresponding upstream source archives and build information are provided alongside the component. MRKCAL does not claim authorship or endorsement by these projects.