Attach (recommended) or Link to PDF file here:
https://www.nta.go.jp/taxes/tetsuzuki/shinsei/annai/joyaku/annai/pdf2/250.pdf

Configuration:
- Web browser and its version: Firefox 81.0a1
- Operating system and its version: Debian 5.6.7-1
- PDF.js version: latest in Firefox nightly
- Is a browser extension: No

Steps to reproduce the problem:
1. Open the pdf and paste the following text "本 店 又 は 主 た る 事 務 所 の 所 在 地" in "Full name" and in "Domicile and residence" textfields
2. Print or Save the pdf 

What is the expected behavior? (add screenshot)
![image](https://user-images.githubusercontent.com/5641725/91207547-30f05480-e709-11ea-9abd-2af5d970dc46.png)

What went wrong? (add screenshot)
![image](https://user-images.githubusercontent.com/5641725/91207663-69902e00-e709-11ea-8a1d-1ddd30cf0621.png)

Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension):

this.error = error;
    this.loadedName = "g_font_error";
    this.missingFile = true;
  }
  ErrorFont.prototype = {
    charsToGlyphs: function ErrorFont_charsToGlyphs() {
      return [];
    },
    exportData(extraProperties = false) {
      return { error: this.error };
    },
  };
  return ErrorFont;
})();
/**
 * Shared logic for building a char code to glyph id mapping for Type1 and
 * simple CFF fonts. See section 9.6.6.2 of the spec.
 * @param {Object} properties Font properties object.
 * @param {Object} builtInEncoding The encoding contained within the actual font
 * data.
 * @param {Array} glyphNames Array of glyph names where the index is the
 * glyph ID.
 * @returns {Object} A char code to glyph ID map.
 */
function type1FontGlyphMapping(properties, builtInEncoding, glyphNames) {