Attach (recommended) or Link to PDF file here: https://github.com/mozilla/pdf.js/files/7021521/sample.pdf

Configuration:
- Web browser and its version: Chrome
- Operating system and its version: Microsoft
- PDF.js: 2.2.228


What is the expected behavior? 
Embedded PDF Viewer should display right font with all characters

What went wrong? 
![image](https://user-images.githubusercontent.com/89254263/130225854-43467f78-e856-4a42-8e64-94bdfe479053.png)


Is it possible to add some other font? Is it possible to manage what encodings will be used?

Thank you in advantage

Regards Ladislav

t[2917] = 7471;
  t[2918] = 7472;
  t[2920] = 7474;
  t[2921] = 7475;
  t[2922] = 7476;
  t[2924] = 7478;
  t[2925] = 7479;
  t[2926] = 7480;
  t[2928] = 7482;
  t[2929] = 7483;
  t[2930] = 7484;
  t[2932] = 7486;
  t[2933] = 7487;
  t[2934] = 7488;
  t[2936] = 7490;
  t[2937] = 7491;
  t[2938] = 7492;
  t[2940] = 7494;
  t[2941] = 7495;
  t[2942] = 7496;
  t[2944] = 7498;
  t[2946] = 7500;
  t[2948] = 7502;
  t[2950] = 7504;
  t[2951] = 7505;
  t[2952] = 7506;
  t[2954] = 7508;
  t[2955] = 7509;
  t[2956] = 7510;
  t[2958] = 7512;