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):

codes = range[2];
        var code = codes[0];
        for (j = 1, jj = codes.length; j < jj; ++j) {
          if (codes[j] !== codes[j - 1] + 1) {
            end = range[0] + j - 1;
            format31012 +=
              string32(start) + 
              string32(end) + 
              string32(code); 
            start = end + 1;
            code = codes[j];
          }
        }
        format31012 +=
          string32(start) + 
          string32(range[1]) + 
          string32(code); 
      }
      header31012 =
        "\x00\x0C" + 
        "\x00\x00" + 
        string32(format31012.length + 16) + 
        "\x00\x00\x00\x00" + 
        string32(format31012.length / 12); 
    }
    return (
      cmap +
      "\x00\x04" + 
      string16(format314.length + 4) + 
      format314 +