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 
this.docBaseUrl = params.docBaseUrl || null;
      this.pdfDocument = {
        catalog: {
          acroForm: new Dict(),
        },
      };
    }
    ensure(obj, prop, args) {
      return new Promise(function (resolve) {
        const value = obj[prop];
        if (typeof value === "function") {
          resolve(value.apply(obj, args)
        } else {
          resolve(value
        }
      }
    }
    ensureCatalog(prop, args) {
      return this.ensure(this.pdfDocument.catalog, prop, args
    }
    ensureDoc(prop, args) {
      return this.ensure(this.pdfDocument, prop, args
    }
  }
  const fontDataReader = new DefaultStandardFontDataFactory({
    baseUrl: STANDARD_FONT_DATA_URL,
  }
  function HandlerMock() {
    this.inputs = [];
  }