SIGN — third-party notices
==========================
SIGN vendors exactly three open-source libraries, self-hosted in vendor/. All other code is original.

1) pdfjs-dist 3.11.174 (legacy build) — Apache License 2.0 — Copyright Mozilla Foundation
2) pdf-lib 1.17.1 — MIT License — Copyright (c) 2019 Andrew Dillon
3) qrcode-generator 2.0.4 — MIT License — Copyright (c) 2009 Kazuhiko Arase
   ('QR Code' is a registered trademark of DENSO WAVE INCORPORATED)

Full license texts follow.

----- pdfjs-dist (Apache-2.0) -----

----- pdf-lib (MIT) -----

----- qrcode-generator (MIT) -----
//---------------------------------------------------------------------
//
// QR Code Generator for JavaScript
//
// Copyright (c) 2009 Kazuhiko Arase
//
// URL: http://www.d-project.com/
//
// Licensed under the MIT license:
//  http://www.opensource.org/licenses/mit-license.php
//
// The word 'QR Code' is registered trademark of
// DENSO WAVE INCORPORATED
//  http://www.denso-wave.com/qrcode/faqpatent-e.html