Attach (recommended) or Link to PDF file here: 
[A Sample PDF Clean 0 degree with all annotations-original-rotated.pdf](https://github.com/mozilla/pdf.js/files/6551789/A.Sample.PDF.Clean.0.degree.with.all.annotations-original-rotated.pdf)

Configuration:
- Web browser and its version: all browsers, tested with Chrome and Firefox latest versions.
- Operating system and its version: tested in Windows 10
- PDF.js version: current (online version)

Steps to reproduce the problem:
1. Visit https://mozilla.github.io/pdf.js/web/viewer.html
2. Upload the file above
3. Notice that several annotations such as arrow, freehand & polyline are missing (compared to Acrobat Reader)
![image](https://user-images.githubusercontent.com/45581023/119781014-11d35d00-befd-11eb-8daa-64f15374cf5b.png)


What is the expected behavior?
- Should display all annotations accordingly to Acrobat Reader

What went wrong? 
- Several annotations are missing such as arrow, freehand & polyline
- Opacity property is not supported and cannot be retrieved via getAnnotations 

return null;
    }
    value = value.trim();
    if (value === "") {
      
      return "";
    }
    let lineCount = -1;
    if (this.data.multiLine) {
      lineCount = value.split(/\r\n|\r|\n/).length;
    }
    const defaultPadding = 2;
    const hPadding = defaultPadding;
    const totalHeight = this.data.rect[3] - this.data.rect[1];
    const totalWidth = this.data.rect[2] - this.data.rect[0];
    if (!this._defaultAppearance) {
      
      
      
      
      
      this.data.defaultAppearanceData = parseDefaultAppearance(
        (this._defaultAppearance = "/Helvetica 0 Tf 0 g")
      );
    }
    const [defaultAppearance, fontSize] = this._computeFontSize(
      totalHeight,
      lineCount
    );