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["MS-PMincho-Italic"] = "MS PMincho-Italic";
  t.NuptialScript = "Times-Italic";
  t.SegoeUISymbol = "Helvetica";
  t.Wingdings = "ZapfDingbats";
  t["Wingdings-Regular"] = "ZapfDingbats";
});
const getSerifFonts = getLookupTableFactory(function (t) {
  t["Adobe Jenson"] = true;
  t["Adobe Text"] = true;
  t.Albertus = true;
  t.Aldus = true;
  t.Alexandria = true;
  t.Algerian = true;
  t["American Typewriter"] = true;
  t.Antiqua = true;
  t.Apex = true;
  t.Arno = true;
  t.Aster = true;
  t.Aurora = true;
  t.Baskerville = true;
  t.Bell = true;
  t.Bembo = true;
  t["Bembo Schoolbook"] = true;
  t.Benguiat = true;
  t["Berkeley Old Style"] = true;
  t["Bernhard Modern"] = true;
  t["Berthold City"] = true;
  t.Bodoni = true;
  t["Bauer Bodoni"] = true;
  t["Book Antiqua"] = true;