SumifyPDF browser-local image OCR

Tesseract.js 7.0.0: https://github.com/naptha/tesseract.js
Apache-2.0. Full license: /ocr-assets/TESSERACT-JS-LICENSE.txt
Tesseract.js-core 7.0.0: https://github.com/naptha/tesseract.js-core
Apache-2.0. Full license: /ocr-assets/TESSERACT-CORE-LICENSE.txt
These upstream engine distributions are unmodified. SumifyPDF supplies its own
interface, image preparation, lifecycle controls and self-hosted asset paths.

Language package wrappers @tesseract.js-data/eng and @tesseract.js-data/chi_sim,
version 1.0.0, declare MIT in their package metadata. The distributed model data
is the 4.0.0_best_int set from https://github.com/naptha/tessdata, derived from
Tesseract language data: https://github.com/tesseract-ocr/tessdata_best (Apache-2.0).
Model source and license attribution must be retained with the distribution.
Full model license: /ocr-assets/MODEL-LICENSE.txt
Bundled worker dependency notices: /ocr-assets/worker.min.js.LICENSE.txt

Recognition is probabilistic. These components provide no accuracy guarantee.