
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)


"\x01\xDF" + 
      "\x00\x31" + 
      "\x01\x02" + 
      "\x00\x00" + 
      "\x00\x00\x06" +
      String.fromCharCode(properties.fixedPitch ? 0x09 : 0x00) +
      "\x00\x00\x00\x00\x00\x00" + 
      string32(ulUnicodeRange1) + 
      string32(ulUnicodeRange2) + 
      string32(ulUnicodeRange3) + 
      string32(ulUnicodeRange4) + 
      "\x2A\x32\x31\x2A" + 
      string16(properties.italicAngle ? 1 : 0) + 
      string16(firstCharIndex || properties.firstChar) + 
      string16(lastCharIndex || properties.lastChar) + 
      string16(typoAscent) + 
      string16(typoDescent) + 
      "\x00\x64" + 
      string16(winAscent) + 
      string16(winDescent) + 
      "\x00\x00\x00\x00" + 
      "\x00\x00\x00\x00" + 
      string16(properties.xHeight) + 
      string16(properties.capHeight) + 
      string16(0) + 
      string16(firstCharIndex || properties.firstChar) + 
      "\x00\x03"
    ); 
  }
  function createPostTable(properties) {