Hello

I have posted on nextcloud GIT this issue and they pointed me here.

Here is the issue I have posted - https://github.com/nextcloud/files_pdfviewer/issues/508

Configuration

Web browser and its version: Google Chrome, ver.94.0.4606.81 x64
Operating system and its version: Windows 10, 21H1, build 19043.1288
PDF.js version: v2.9.359
Is a browser extension: no I dont use it as extension

Steps to reproduce the problem:

What is the expected behavior?
Shared PDF created in AutoCAD without borders

![Snímek obrazovky 2021-10-19 120908](https://user-images.githubusercontent.com/11374526/137889425-c0983b5c-a557-46dc-ac32-d50c1dbb9ea9.png)

What went wrong?
Shared PDF created in AutoCAD is with border...
![image](https://user-images.githubusercontent.com/11374526/137888031-11852e03-41a4-48a0-bc0a-3ba0d65bd912.png)

Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension):
https://cloud.ostritecky.cz/s/cryrqKarK9CEam8

PDF viewer rendering border around text and objects when creating files with AutoCAD and It looks really bad. Is there a way to switch it off ?

Testfile here:

[Test.pdf](https://github.com/mozilla/pdf.js/files/7372181/Test.pdf)

constructor(params) {
    const dict = params.dict;
    this.setTitle(dict.get("T"));
    this.setContents(dict.get("Contents"));
    this.setModificationDate(dict.get("M"));
    this.setFlags(dict.get("F"));
    this.setRectangle(dict.getArray("Rect"));
    this.setColor(dict.getArray("C"));
    this.setBorderStyle(dict);
    this.setAppearance(dict);
    this.setBorderAndBackgroundColors(dict.get("MK"));
    this._streams = [];
    if (this.appearance) {
      this._streams.push(this.appearance);
    }
    
    this.data = {
      annotationFlags: this.flags,
      borderStyle: this.borderStyle,
      color: this.color,
      backgroundColor: this.backgroundColor,
      borderColor: this.borderColor,
      contentsObj: this._contents,
      hasAppearance: !!this.appearance,
      id: params.id,
      modificationDate: this.modificationDate,
      rect: this.rectangle,
      subtype: params.subtype,
    };