Japanese Font Displaying Different Characters

[srshupe]

Attach (recommended) or Link to PDF file here:
10899169_NoEmbeddedFont_20210907TEST2D 1.pdf

Configuration:
- Web browser and its version: Chrome v120, also latest versions of Edge and Firefox
- Operating system and its version: Windows 11
- PDF.js version: 4.1.111
- Is a browser extension: no

Steps to reproduce the problem:

1. Open the attached PDF in Adobe and in PDF.js (v4.1.111). The Japanese characters are different.

What is the expected behavior? (add screenshot)
A Japanese font (that is not embedded) displays correctly in Adobe but shows up garbled in PDF.js. The characters should be the same in either.

This is how it looks in Adobe:

And this is how it looks in PDF.js v4.1.111:

PDF.js is displaying characters, but they are the incorrect ones, it looks like.

What went wrong? (add screenshot)
There are no error messages.

Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension):
https://mozilla.github.io/pdf.js/web/viewer.html

[Snuffleupagus]

A Japanese font (that is not embedded) displays correctly in Adobe but shows up garbled in PDF.js. The characters should be the same in either.

Please note that the only way to guarantee that it works correctly is by embedding all fonts in the PDF document.