Attach (recommended) or Link to PDF file here:
https://drive.google.com/open?id=1UjLxnFw2g3gn3tvNLRYLdmG6mFdFKCcr

Configuration:
- Web browser and its version: Chrome 77.0.3865.90
- Operating system and its version: Mac mojave 10.14.6
- PDF.js version: 2.3.194
- Is a browser extension: Nope

Steps to reproduce the problem:
1. Make sure to set `renderInteractiveForms` to `true`
2. The read-only form field(Sample title) doesn't honor it's proper font-size

What is the expected behavior?
<img width="862" alt="write" src="https://user-images.githubusercontent.com/4616548/66152094-4a009a80-e64b-11e9-81dc-178068055efa.png">

What went wrong?
<img width="842" alt="wrong" src="https://user-images.githubusercontent.com/4616548/66152100-4d942180-e64b-11e9-91a8-ad9caf451f98.png">


case "Ink":
        return new InkAnnotation(parameters);
      case "Highlight":
        return new HighlightAnnotation(parameters);
      case "Underline":
        return new UnderlineAnnotation(parameters);
      case "Squiggly":
        return new SquigglyAnnotation(parameters);
      case "StrikeOut":
        return new StrikeOutAnnotation(parameters);
      case "Stamp":
        return new StampAnnotation(parameters);
      case "FileAttachment":
        return new FileAttachmentAnnotation(parameters);
      default:
        if (!subtype) {
          warn("Annotation is missing the required /Subtype.");
        } else {
          warn(
            'Unimplemented annotation type "' +
              subtype +
              '", ' +
              "falling back to base annotation."
          );
        }
        return new Annotation(parameters);
    }
  }
}
function getQuadPoints(dict, rect) {