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// Multiple sections with total number of pages in each section
import * as fs from "fs";import { AlignmentType, Document, Footer, Header, Packer, PageBreak, PageNumber, NumberFormat, Paragraph, TextRun } from "docx";
const header = new Header({    children: [        new Paragraph({            children: [                new TextRun("Header on another page"),                new TextRun({                    children: ["Page number: ", PageNumber.CURRENT],                }),                new TextRun({                    children: [" to ", PageNumber.TOTAL_PAGES_IN_SECTION],                }),            ],            alignment: AlignmentType.CENTER,        }),    ],});
const footer = new Footer({    children: [new Paragraph("Foo Bar corp. ")],});
const doc = new Document({    sections: [        {            properties: {                page: {                    pageNumbers: {                        start: 1,                        formatType: NumberFormat.DECIMAL,                    },                },            },            headers: {                default: header,            },            footers: {                default: footer,            },            children: [                new Paragraph({                    children: [new TextRun("Section 1"), new PageBreak(), new TextRun("Section 1"), new PageBreak()],                }),            ],        },        {            properties: {                page: {                    pageNumbers: {                        start: 1,                        formatType: NumberFormat.DECIMAL,                    },                },            },            headers: {                default: header,            },            footers: {                default: footer,            },            children: [                new Paragraph({                    children: [new TextRun("Section 2"), new PageBreak(), new TextRun("Section 2"), new PageBreak()],                }),            ],        },    ],});
Packer.toBuffer(doc).then((buffer) => {    fs.writeFileSync("My Document.docx", buffer);});