Word Document Builder

make_document(format="docx", content={ title, sections:[{heading, level, paragraphs, bullets, table:{rows}, image:{path}}] })

// gen.cjs — illustrative; adapt to the content
const fs = require("node:fs");
const {
  Document, Packer, Paragraph, TextRun, HeadingLevel, AlignmentType,
  Table, TableRow, TableCell, WidthType, BorderStyle, ShadingType,
  LevelFormat, Header, Footer, PageNumber, TableOfContents, ExternalHyperlink,
} = require("docx");

const doc = new Document({
  styles: { default: { document: { run: { font: "Calibri", size: 22 } } },     // size is half-points (22 = 11pt)
    paragraphStyles: [{ id: "Body", name: "Body", run: { size: 22 }, paragraph: { spacing: { after: 160 } } }] },
  numbering: { config: [{ reference: "nums", levels: [{ level: 0, format: LevelFormat.DECIMAL, text: "%1.", alignment: AlignmentType.START }] }] },
  sections: [{
    properties: { page: { size: { width: 12240, height: 15840 } } },           // US Letter, in DXA (1440 = 1 inch)
    headers: { default: new Header({ children: [new Paragraph("Acme Corp — Confidential")] }) },
    footers: { default: new Footer({ children: [new Paragraph({ children: [new TextRun("Page "), new TextRun({ children: [PageNumber.CURRENT] })] })] }) },
    children: [
      new Paragraph({ text: "Q3 Business Review", heading: HeadingLevel.TITLE }),
      new TableOfContents("Contents", { hyperlink: true, headingStyleRange: "1-3" }),
      new Paragraph({ text: "Summary", heading: HeadingLevel.HEADING_1 }),
      new Paragraph({ children: [ new TextRun("Revenue was "), new TextRun({ text: "$1.2M", bold: true }), new TextRun(" — up 18%.") ] }),
      new Paragraph({ text: "First item", numbering: { reference: "nums", level: 0 } }),
      new Paragraph({ children: [ new ExternalHyperlink({ children: [new TextRun({ text: "Full data", style: "Hyperlink" })], link: "https://example.com" }) ] }),
      new Table({
        columnWidths: [4680, 4680],                                            // DXA, sum = content width
        rows: [
          new TableRow({ tableHeader: true, children: ["Metric","Value"].map((t) =>
            new TableCell({ width: { size: 4680, type: WidthType.DXA }, shading: { type: ShadingType.CLEAR, fill: "D9E2F3" },
              children: [new Paragraph({ children: [new TextRun({ text: t, bold: true })] })] })) }),
          new TableRow({ children: ["Revenue","$1.2M"].map((t) =>
            new TableCell({ width: { size: 4680, type: WidthType.DXA }, children: [new Paragraph(t)] })) }),
        ],
      }),
    ],
  }],
});
Packer.toBuffer(doc).then((buf) => { fs.writeFileSync(process.argv[2] || "out.docx", buf); console.log("wrote", process.argv[2] || "out.docx"); });

// edit.cjs — unzip → edit word/document.xml → rezip (styles/headers/theme untouched)
const fs = require("node:fs");
const { unzipSync, zipSync, strToU8, strFromU8 } = require("fflate");
const zip = unzipSync(fs.readFileSync(process.argv[2]));
let xml = strFromU8(zip["word/document.xml"]);
xml = xml.replaceAll("{{client}}", "Acme Corp");          // fill placeholders in <w:t> runs
zip["word/document.xml"] = strToU8(xml);
fs.writeFileSync(process.argv[3], zipSync(zip));