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["Arial-ItalicMT"] = "Helvetica-Oblique";
  t.ArialMT = "Helvetica";
  t["Courier-BoldItalic"] = "Courier-BoldOblique";
  t["Courier-Italic"] = "Courier-Oblique";
  t.CourierNew = "Courier";
  t["CourierNew-Bold"] = "Courier-Bold";
  t["CourierNew-BoldItalic"] = "Courier-BoldOblique";
  t["CourierNew-Italic"] = "Courier-Oblique";
  t["CourierNewPS-BoldItalicMT"] = "Courier-BoldOblique";
  t["CourierNewPS-BoldMT"] = "Courier-Bold";
  t["CourierNewPS-ItalicMT"] = "Courier-Oblique";
  t.CourierNewPSMT = "Courier";
  t["Helvetica-BoldItalic"] = "Helvetica-BoldOblique";
  t["Helvetica-Italic"] = "Helvetica-Oblique";
  t["Symbol-Bold"] = "Symbol";
  t["Symbol-BoldItalic"] = "Symbol";
  t["Symbol-Italic"] = "Symbol";
  t.TimesNewRoman = "Times-Roman";
  t["TimesNewRoman-Bold"] = "Times-Bold";
  t["TimesNewRoman-BoldItalic"] = "Times-BoldItalic";
  t["TimesNewRoman-Italic"] = "Times-Italic";
  t.TimesNewRomanPS = "Times-Roman";
  t["TimesNewRomanPS-Bold"] = "Times-Bold";
  t["TimesNewRomanPS-BoldItalic"] = "Times-BoldItalic";
  t["TimesNewRomanPS-BoldItalicMT"] = "Times-BoldItalic";
  t["TimesNewRomanPS-BoldMT"] = "Times-Bold";
  t["TimesNewRomanPS-Italic"] = "Times-Italic";
  t["TimesNewRomanPS-ItalicMT"] = "Times-Italic";
  t.TimesNewRomanPSMT = "Times-Roman";
  t["TimesNewRomanPSMT-Bold"] = "Times-Bold";