code: public void setHasTitlePage() {
          if(this.mode == MODE_SINGLE) {
              this.mode = MODE_MULTIPLE;
              headerFirst = new RtfHeaderFooter(this.document, headerAll, RtfHeaderFooter.DISPLAY_FIRST_PAGE);
              headerFirst.setType(this.type);
          }
      }
docs: Set that this RtfHeaderFooterGroup should have a title page. If only
  a header / footer for all pages exists, then it will be copied to the
  first page as well.