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):

annotationDict.set("C", [0, 0, 1]);
        const replyRef = Ref.get(820, 0);
        const replyDict = new Dict();
        replyDict.set("Type", Name.get("Annot"));
        replyDict.set("Subtype", Name.get("Text"));
        replyDict.set("IRT", annotationRef);
        replyDict.set("RT", Name.get("Group"));
        replyDict.set("T", "Reply Title");
        replyDict.set("Contents", "Reply Text");
        replyDict.set("M", "D:20190523");
        replyDict.set("C", [0.4]);
        pRef = Ref.get(821, 0);
        pDict = new Dict();
        et("Type", Name.get("Annot"));
        et("Subtype", Name.get("Popup"));
        et("T", "Wrong Title");
        et("Contents", "Wrong Text");
        et("Parent", replyRef);
        et("M", "D:20190623");
        et("C", [0.8]);
        replyDict.set("Popup", popupRef);
        const xref = new XRefMock([
          { ref: annotationRef, data: annotationDict },
          { ref: replyRef, data: replyDict },
          { ref: popupRef, data: popupDict },
        ]);
        annotationDict.assignXref(xref);
        popupDict.assignXref(xref);
        replyDict.assignXref(xref);
        AnnotationFactory.create(