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.Lucida = true;
  t["Lucida Bright"] = true;
  t.Melior = true;
  t.Memphis = true;
  t.Miller = true;
  t.Minion = true;
  t.Modern = true;
  t["Mona Lisa"] = true;
  t["Mrs Eaves"] = true;
  t["MS Serif"] = true;
  t["Museo Slab"] = true;
  t["New York"] = true;
  t["Nimbus Roman"] = true;
  t["NPS Rawlinson Roadway"] = true;
  t.NuptialScript = true;
  t.Palatino = true;
  t.Perpetua = true;
  t.Plantin = true;
  t["Plantin Schoolbook"] = true;
  t.Playbill = true;
  t["Poor Richard"] = true;
  t["Rawlinson Roadway"] = true;
  t.Renault = true;
  t.Requiem = true;
  t.Rockwell = true;
  t.Roman = true;
  t["Rotis Serif"] = true;
  t.Sabon = true;
  t.Scala = true;
  t.Seagull = true;