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[3006] = 64294;
  t[3007] = 64295;
  t[3008] = 64296;
  t[3011] = 1900;
  t[3014] = 8223;
  t[3015] = 8244;
  t[3017] = 7532;
  t[3018] = 7533;
  t[3019] = 7534;
  t[3075] = 7590;
  t[3076] = 7591;
  t[3079] = 7594;
  t[3080] = 7595;
  t[3083] = 7598;
  t[3084] = 7599;
  t[3087] = 7602;
  t[3088] = 7603;
  t[3091] = 7606;
  t[3092] = 7607;
  t[3095] = 7610;
  t[3096] = 7611;
  t[3099] = 7614;
  t[3100] = 7615;
  t[3103] = 7618;
  t[3104] = 7619;
  t[3107] = 8337;
  t[3108] = 8338;
  t[3116] = 1884;
  t[3119] = 1885;
  t[3120] = 1885;