
Attach (recommended) or Link to PDF file here:
[NAPEN16171380959.pdf](https://github.com/mozilla/pdf.js/files/6143802/NAPEN16171380959.pdf)

Configuration:
- Web browser and its version: Firefox 88 Nightly
- Operating system and its version: Windows 10
- PDF.js version:
- Is a browser extension: No

What went wrong? (add screenshot)
![](https://user-media-prod-cdn.itsre-sumo.mozilla.net/uploads/images/2021-03-15-10-58-27-ce2796.png)


this.black = name.search(/Black/g) !== -1;
      
      
      const isNarrow = name.search(/Narrow/g) !== -1;
      
      this.remeasure =
        (!isStandardFont || isNarrow) && Object.keys(this.widths).length > 0;
      if (
        (isStandardFont || isMappedToStandardFont) &&
        type === "CIDFontType2" &&
        this.cidEncoding.startsWith("Identity-")
      ) {
        const GlyphMapForStandardFonts = getGlyphMapForStandardFonts(),
          cidToGidMap = properties.cidToGidMap;
        
        
        const map = [];
        for (const charCode in GlyphMapForStandardFonts) {
          map[+charCode] = GlyphMapForStandardFonts[charCode];
        }
        if (/Arial-?Black/i.test(name)) {
          var SupplementalGlyphMapForArialBlack = getSupplementalGlyphMapForArialBlack();
          for (const charCode in SupplementalGlyphMapForArialBlack) {
            map[+charCode] = SupplementalGlyphMapForArialBlack[charCode];
          }
        } else if (/Calibri/i.test(name)) {
          const SupplementalGlyphMapForCalibri = getSupplementalGlyphMapForCalibri();
          for (const charCode in SupplementalGlyphMapForCalibri) {