How to set header and Footer position in poi word (XWPF)? - apache-poi

Question

I want to set header and footer's position. Header from top: 45.4 pt, Footer from bottom: 28.4 pt as we can see in Header & Footer Tools menu when we open a word file. Thanks in advance!

Answer 1

For this you will need setting the page margins. For this you will need org.openxmlformats.schemas.wordprocessingml.x2006.main.CTPageMar. And for using this we need the fully ooxml-schemas-1.3.jar as mentioned in https://poi.apache.org/faq.html#faq-N10025.
Example:
import java.io.*;
import org.apache.poi.xwpf.usermodel.*;
import org.apache.poi.xwpf.model.XWPFHeaderFooterPolicy;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTSectPr;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTPageMar;
import java.math.BigInteger;
public class CreateWordHeaderFooterTopBottom {
public static void main(String[] args) throws Exception {
XWPFDocument document = new XWPFDocument();
// create header-footer
XWPFHeaderFooterPolicy headerFooterPolicy = document.getHeaderFooterPolicy();
if (headerFooterPolicy == null) headerFooterPolicy = document.createHeaderFooterPolicy();
// create header start
XWPFHeader header = headerFooterPolicy.createHeader(XWPFHeaderFooterPolicy.DEFAULT);
XWPFParagraph paragraph = header.createParagraph();
paragraph.setAlignment(ParagraphAlignment.CENTER);
XWPFRun run = paragraph.createRun();
run.setText("Header");
// create footer start
XWPFFooter footer = headerFooterPolicy.createFooter(XWPFHeaderFooterPolicy.DEFAULT);
paragraph = footer.createParagraph();
paragraph.setAlignment(ParagraphAlignment.CENTER);
run = paragraph.createRun();
run.setText("Footer");
CTSectPr sectPr = document.getDocument().getBody().getSectPr();
if (sectPr == null) sectPr = document.getDocument().getBody().addNewSectPr();
CTPageMar pageMar = sectPr.getPgMar();
if (pageMar == null) pageMar = sectPr.addNewPgMar();
pageMar.setLeft(BigInteger.valueOf(720)); //720 TWentieths of an Inch Point (Twips) = 720/20 = 36 pt = 36/72 = 0.5"
pageMar.setRight(BigInteger.valueOf(720));
pageMar.setTop(BigInteger.valueOf(1440)); //1440 Twips = 1440/20 = 72 pt = 72/72 = 1"
pageMar.setBottom(BigInteger.valueOf(1440));
pageMar.setHeader(BigInteger.valueOf(908)); //45.4 pt * 20 = 908 = 45.4 pt header from top
pageMar.setFooter(BigInteger.valueOf(568)); //28.4 pt * 20 = 568 = 28.4 pt footer from bottom
FileOutputStream out = new FileOutputStream("CreateWordHeaderFooterTopBottom.docx");
document.write(out);
out.close();
document.close();
}
}
Note the special measurement unit Twip = TWentieths of an Inch Point.