The test file at https://github.com/mozilla/pdf.js/blob/master/test/pdfs/annotation-choice-widget.pdf contains listboxes, which are not rendered correctly when printed right now. These kinds of fields are made by https://github.com/mozilla/pdf.js/blob/master/src/display/annotation_layer.js#L672-L678.

/cc @calixteman 
if (!(style instanceof Name)) {
      return;
    }
    switch (style.name) {
      case "S":
        this.style = AnnotationBorderStyleType.SOLID;
        break;
      case "D":
        this.style = AnnotationBorderStyleType.DASHED;
        break;
      case "B":
        this.style = AnnotationBorderStyleType.BEVELED;
        break;
      case "I":
        this.style = AnnotationBorderStyleType.INSET;
        break;
      case "U":
        this.style = AnnotationBorderStyleType.UNDERLINE;
        break;
      default:
        break;
    }
  }
  /**
   * Set the dash array.
   *
   * @public
   * @memberof AnnotationBorderStyle
   * @param {Array} dashArray - The dash array with at least one element
   * @param {boolean} [forceStyle]