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):

const task = new WorkerTask("test print");
      AnnotationFactory.create(
        xref,
        buttonWidgetRef,
        pdfManagerMock,
        idFactoryMock
      )
        .then(annotation => {
          const annotationStorage = {};
          return annotation.getOperatorList(
            partialEvaluator,
            task,
            false,
            annotationStorage
          );
        })
        .then(opList => {
          expect(opList.argsArray.length).toEqual(3);
          expect(opList.fnArray).toEqual([
            OPS.beginAnnotation,
            OPS.setFillRGBColor,
            OPS.endAnnotation,
          ]);
          expect(opList.argsArray[1]).toEqual(
            new Uint8ClampedArray([26, 51, 76])
          );
          done();
        })
        .catch(done.fail);
    });