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[260] = 260;
  t[261] = 261;
  t[265] = 280;
  t[266] = 281;
  t[268] = 283;
  t[269] = 313;
  t[275] = 323;
  t[276] = 324;
  t[278] = 328;
  t[284] = 345;
  t[285] = 346;
  t[286] = 347;
  t[292] = 367;
  t[295] = 377;
  t[296] = 378;
  t[298] = 380;
  t[305] = 963;
  t[306] = 964;
  t[307] = 966;
  t[308] = 8215;
  t[309] = 8252;
  t[310] = 8319;
  t[311] = 8359;
  t[312] = 8592;
  t[313] = 8593;
  t[337] = 9552;
  t[493] = 1039;
  t[494] = 1040;
  t[705] = 1524;
  t[706] = 8362;