docx-js/demo/demo16.ts

// Multiple sections and headers
// Import from 'docx' rather than '../build' if you install from npm
import * as fs from "fs";
import { Document, Packer, PageNumberFormat, PageOrientation, Paragraph, TextRun } from "../build";

const doc = new Document();

const paragraph = new Paragraph("Hello World").pageBreak();

doc.add(paragraph);

const header = doc.createHeader();
header.add(new Paragraph("Header on another page"));
const footer = doc.createFooter();
footer.add(new Paragraph("Footer on another page"));

doc.addSection({
    properties: {
        headers: {
            default: header,
        },
        footers: {
            default: footer,
        },
        pageNumberStart: 1,
        pageNumberFormatType: PageNumberFormat.DECIMAL,
    },
    children: [new Paragraph("hello")],
});

doc.addSection({
    properties: {
        headers: {
            default: header,
        },
        footers: {
            default: footer,
        },
        pageNumberStart: 1,
        pageNumberFormatType: PageNumberFormat.DECIMAL,
        orientation: PageOrientation.LANDSCAPE,
    },
    children: [new Paragraph("hello in landscape")],
});

const header2 = doc.createHeader();
const pageNumber = new TextRun("Page number: ").pageNumber();
header2.add(new Paragraph({}).addRun(pageNumber));

doc.addSection({
    properties: {
        headers: {
            default: header2,
        },
        orientation: PageOrientation.PORTRAIT,
    },
    children: [new Paragraph("Page number in the header must be 2, because it continues from the previous section.")],
});

doc.addSection({
    properties: {
        headers: {
            default: header2,
        },
        pageNumberFormatType: PageNumberFormat.UPPER_ROMAN,
        orientation: PageOrientation.PORTRAIT,
    },
    children: [
        new Paragraph(
            "Page number in the header must be III, because it continues from the previous section, but is defined as upper roman.",
        ),
    ],
});

doc.addSection({
    properties: {
        headers: {
            default: header2,
        },
        pageNumberFormatType: PageNumberFormat.DECIMAL,
        pageNumberStart: 25,
        orientation: PageOrientation.PORTRAIT,
    },
    children: [
        new Paragraph("Page number in the header must be 25, because it is defined to start at 25 and to be decimal in this section."),
    ],
});

const packer = new Packer();

packer.toBuffer(doc).then((buffer) => {
    fs.writeFileSync("My Document.docx", buffer);
});