Attach (recommended) or Link to PDF file here:
[docOficialPDF.php.pdf](https://github.com/mozilla/pdf.js/files/7159923/docOficialPDF.php.pdf)

Configuration:
- Web browser and its version: Firefox nightly
- Operating system and its version: linux debian
- PDF.js version: built-in viewer
- Is a browser extension: no

Steps to reproduce the problem:
1. Open the pdf page 2
2. Checkbox "Alta" in section 2 must be checked

It works fine with evince.
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
    );