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):

warn,
} from "../shared/util.js";
import { isCmd, isEOF, isName, isStream } from "./primitives.js";
import { Lexer } from "./parser.js";
import { MissingDataException } from "./core_utils.js";
import { Stream } from "./stream.js";
var BUILT_IN_CMAPS = [
  
  "Adobe-GB1-UCS2",
  "Adobe-CNS1-UCS2",
  "Adobe-Japan1-UCS2",
  "Adobe-Korea1-UCS2",
  
  "78-EUC-H",
  "78-EUC-V",
  "78-H",
  "78-RKSJ-H",
  "78-RKSJ-V",
  "78-V",
  "78ms-RKSJ-H",
  "78ms-RKSJ-V",
  "83pv-RKSJ-H",
  "90ms-RKSJ-H",
  "90ms-RKSJ-V",
  "90msp-RKSJ-H",
  "90msp-RKSJ-V",
  "90pv-RKSJ-H",
  "90pv-RKSJ-V",
  "Add-H",
  "Add-RKSJ-H",