
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)


}
    }
    nameTable += strings.join("") + stringsUnicode.join("");
    return nameTable;
  }
  Font.prototype = {
    name: null,
    font: null,
    mimetype: null,
    disableFontFace: false,
    get renderer() {
      var renderer = FontRendererFactory.create(this, SEAC_ANALYSIS_ENABLED);
      return shadow(this, "renderer", renderer);
    },
    exportData(extraProperties = false) {
      const exportDataProperties = extraProperties
        ? [...EXPORT_DATA_PROPERTIES, ...EXPORT_DATA_EXTRA_PROPERTIES]
        : EXPORT_DATA_PROPERTIES;
      const data = Object.create(null);
      let property, value;
      for (property of exportDataProperties) {
        value = this[property];
        
        if (value !== undefined) {
          data[property] = value;
        }
      }
      return data;
    },
    fallbackToSystemFont(properties) {