/**
   * Creates document footer including page number
   *
   * @param doc WordprocessingMLPackage for the document.
   * @throws InvalidFormatException
   */
  private void createFooter(WordprocessingMLPackage doc) throws InvalidFormatException {
    MainDocumentPart content = doc.getMainDocumentPart();

    // Create footer
    FooterPart footer = new FooterPart();

    Ftr ftr = objectFactory.createFtr();
    P footerParagraph = objectFactory.createP();

    setStyle(footerParagraph, "footer");

    PPr parProps = objectFactory.createPPr();
    Jc al = objectFactory.createJc();
    al.setVal(JcEnumeration.RIGHT);
    parProps.setJc(al);
    footerParagraph.setPPr(parProps);

    // Add field start
    R run = objectFactory.createR();
    FldChar fldChar = objectFactory.createFldChar();
    fldChar.setFldCharType(STFldCharType.BEGIN);
    run.getContent().add(fldChar);
    footerParagraph.getContent().add(run);

    // Add pageNumber field
    run = objectFactory.createR();
    Text txt = objectFactory.createText();
    txt.setSpace("preserve");
    txt.setValue(" PAGE   \\* MERGEFORMAT ");
    run.getContent().add(objectFactory.createRInstrText(txt));
    footerParagraph.getContent().add(run);

    // Add field end
    run = objectFactory.createR();
    fldChar = objectFactory.createFldChar();
    fldChar.setFldCharType(STFldCharType.END);
    run.getContent().add(fldChar);
    footerParagraph.getContent().add(run);

    ftr.getContent().add(footerParagraph);
    footer.setJaxbElement(ftr);

    Relationship rel = content.addTargetPart(footer);

    // Relate footer to document
    List<SectionWrapper> sections = doc.getDocumentModel().getSections();

    SectPr sectPr = sections.get(sections.size() - 1).getSectPr();

    if (null == sectPr) {
      sectPr = objectFactory.createSectPr();
      content.addObject(sectPr);
      sections.get(sections.size() - 1).setSectPr(sectPr);
    }

    FooterReference footerReference = objectFactory.createFooterReference();
    footerReference.setId(rel.getId());
    footerReference.setType(HdrFtrRef.DEFAULT);
    sectPr.getEGHdrFtrReferences().add(footerReference);
  }
 private Ftr getFtr(WordprocessingMLPackage wordprocessingMLPackage, Part sourcePart, Tbl table)
     throws Exception {
   Ftr ftr = factory.createFtr();
   if (hasPageNoFooter) {
     ftr.getContent().add(createPageNumParagraph());
   } else {
     ftr.getContent().add(table);
   }
   return ftr;
 }