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):

borderStyle.setVerticalCornerRadius(3);
      expect(borderStyle.verticalCornerRadius).toEqual(3);
    });
    it("should not set and get an invalid vertical corner radius", function () {
      const borderStyle = new AnnotationBorderStyle();
      borderStyle.setVerticalCornerRadius("three");
      expect(borderStyle.verticalCornerRadius).toEqual(0);
    });
  });
  describe("MarkupAnnotation", function () {
    let dict, ref;
    beforeAll(function (done) {
      dict = new Dict();
      ref = Ref.get(1, 0);
      done();
    });
    afterAll(function () {
      dict = ref = null;
    });
    it("should set and get a valid creation date", function () {
      const markupAnnotation = new MarkupAnnotation({ dict, ref });
      markupAnnotation.setCreationDate("D:20190422");
      expect(markupAnnotation.creationDate).toEqual("D:20190422");
    });
    it("should not set and get an invalid creation date", function () {
      const markupAnnotation = new MarkupAnnotation({ dict, ref });
      markupAnnotation.setCreationDate(undefined);
      expect(markupAnnotation.creationDate).toEqual(null);
    });
    it("should not parse IRT/RT when not defined", function (done) {