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[NAPEN16171380959.pdf](https://github.com/mozilla/pdf.js/files/6143802/NAPEN16171380959.pdf)

Configuration:
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- Operating system and its version: Windows 10
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![](https://user-media-prod-cdn.itsre-sumo.mozilla.net/uploads/images/2021-03-15-10-58-27-ce2796.png)


bytes[index + 1] = value;
    bytes[index] = value >>> 8;
  }
  function signedInt16(b0, b1) {
    var value = (b0 << 8) + b1;
    return value & (1 << 15) ? value - 0x10000 : value;
  }
  function int32(b0, b1, b2, b3) {
    return (b0 << 24) + (b1 << 16) + (b2 << 8) + b3;
  }
  function string16(value) {
    return String.fromCharCode((value >> 8) & 0xff, value & 0xff);
  }
  function safeString16(value) {
    
    if (value > 0x7fff) {
      value = 0x7fff;
    } else if (value < -0x8000) {
      value = -0x8000;
    }
    return String.fromCharCode((value >> 8) & 0xff, value & 0xff);
  }
  function isTrueTypeFile(file) {
    var header = file.peekBytes(4);
    return (
      readUint32(header, 0) === 0x00010000 || bytesToString(header) === "true"
    );
  }
  function isTrueTypeCollectionFile(file) {