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):

var unitsPerEm =
      override.unitsPerEm ||
      1 / (properties.fontMatrix || FONT_IDENTITY_MATRIX)[0];
    
    
    var scale = properties.ascentScaled
      ? 1.0
      : unitsPerEm / PDF_GLYPH_SPACE_UNITS;
    var typoAscent =
      override.ascent || Math.round(scale * (properties.ascent || bbox[3]));
    var typoDescent =
      override.descent || Math.round(scale * (properties.descent || bbox[1]));
    if (typoDescent > 0 && properties.descent > 0 && bbox[1] < 0) {
      typoDescent = -typoDescent; 
    }
    var winAscent = override.yMax || typoAscent;
    var winDescent = -override.yMin || -typoDescent;
    return (
      "\x00\x03" + 
      "\x02\x24" + 
      "\x01\xF4" + 
      "\x00\x05" + 
      "\x00\x00" + 
      "\x02\x8A" + 
      "\x02\xBB" + 
      "\x00\x00" + 
      "\x00\x8C" + 
      "\x02\x8A" + 
      "\x02\xBB" + 
      "\x00\x00" +