Attach (recommended) or Link to PDF file here:
[测试文件.pdf](https://github.com/mozilla/pdf.js/files/7147166/default.pdf)

Configuration:
- Web browser and its version:chrome 92.0.4515.131
- Operating system and its [version:](url) windows
- PDF.js version:v2.9.359
- Is a browser extension:no

Steps to reproduce the problem:
1. use pdf.js to open this pdf file
2. incomplete content display


What is the expected behavior? (add screenshot)
![image](https://user-images.githubusercontent.com/16495895/132935415-2b52322d-561c-4f60-97df-24e4429743ff.png)

What went wrong? (add screenshot)
![image](https://user-images.githubusercontent.com/16495895/132935425-e5e6605b-71f5-4065-bb89-5c0fdbe1564b.png)

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

case 0x37: 
              let x = ch & 0x0f;
              ch = this.nextChar();
              charBuffered = true;
              if (ch >=  0x30 && ch <=  0x37) {
                x = (x << 3) + (ch & 0x0f);
                ch = this.nextChar();
                if (ch >=  0x30 && ch  <= 0x37) {
                  charBuffered = false;
                  x = (x << 3) + (ch & 0x0f);
                }
              }
              strBuf.push(String.fromCharCode(x));
              break;
            case 0x0d: 
              if (this.peekChar() ===  0x0a) {
                this.nextChar();
              }
              break;
            case 0x0a: 
              break;
            default:
              strBuf.push(String.fromCharCode(ch));
              break;
          }
          break;
        default:
          strBuf.push(String.fromCharCode(ch));
          break;
      }