OCR Flash browser converters

PDF.js (pdfjs-dist 6.4.299), Mozilla Foundation
Apache License 2.0: /pdf/LICENSE
Source: https://github.com/mozilla/pdf.js

heic-to 1.6.6, Hopper Gee and contributors
GNU LGPL v3 or later: /codecs/heic-to/LICENSE
Unmodified, separately loaded CSP library: /codecs/heic-to/heic-to.js
Library JavaScript sources: /codecs/heic-to/source/index.js,
/codecs/heic-to/source/worker.js, /codecs/heic-to/source/lib/libheif-without-unsafe-eval.js
Build instructions: /codecs/heic-to/esbuild.mjs and /codecs/heic-to/package.json
Source repository: https://github.com/hoppergee/heic-to/tree/v1.6.6
Source package: https://registry.npmjs.org/heic-to/-/heic-to-1.6.6.tgz

The library includes libheif 1.23.6 and libde265 1.0.16, both LGPL.
Corresponding upstream source:
https://github.com/strukturag/libheif/tree/v1.23.6
https://github.com/strukturag/libde265/tree/v1.0.16
HEIC build uses USE_UNSAFE_EVAL=0 and LIBDE265_VERSION=1.0.16.
The library can be replaced independently of the application at the URL above.
Reverse engineering for debugging modifications to the LGPL library is permitted.