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 NAME_RECORD_LENGTH = 12;
        var i, ii;
        for (
          i = 0;
          i < numRecords && font.pos + NAME_RECORD_LENGTH <= end;
          i++
        ) {
          var r = {
            platform: font.getUint16(),
            encoding: font.getUint16(),
            language: font.getUint16(),
            name: font.getUint16(),
            length: font.getUint16(),
            offset: font.getUint16(),
          };
          
          if (
            (r.platform === 1 && r.encoding === 0 && r.language === 0) ||
            (r.platform === 3 && r.encoding === 1 && r.language === 0x409)
          ) {
            records.push(r);
          }
        }
        for (i = 0, ii = records.length; i < ii; i++) {
          var record = records[i];
          if (record.length <= 0) {
            continue; 
          }
          var pos = start + stringsStart + record.offset;
          if (pos + record.length > end) {