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 

OPS,
  shadow,
  stringToPDFString,
  stringToUTF16BEString,
  unreachable,
  Util,
  warn,
} from "../shared/util.js";
import { collectActions, getInheritableProperty } from "./core_utils.js";
import {
  createDefaultAppearance,
  parseDefaultAppearance,
} from "./default_appearance.js";
import {
  Dict,
  isDict,
  isName,
  isRef,
  isStream,
  Name,
  RefSet,
} from "./primitives.js";
import { Catalog } from "./catalog.js";
import { ColorSpace } from "./colorspace.js";
import { FileSpec } from "./file_spec.js";
import { ObjectLoader } from "./object_loader.js";
import { OperatorList } from "./operator_list.js";
import { StringStream } from "./stream.js";
import { writeDict } from "./writer.js";
class AnnotationFactory {