HTML to PDF in Node.js

Skip Puppeteer and the Chromium download entirely — Node's built-in fetch (Node 18+) is enough:

import { writeFile } from "node:fs/promises";

const res = await fetch("https://api.pdfrender.dev/v1/render", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "X-API-Key": process.env.PDFRENDER_KEY, // optional — anonymous works too
  },
  body: JSON.stringify({
    html: "<h1>Hello</h1><p>Rendered from Node.js.</p>",
    filename: "hello.pdf",
  }),
});
if (!res.ok) throw new Error(`render failed: ${res.status} ${await res.text()}`);
await writeFile("hello.pdf", Buffer.from(await res.arrayBuffer()));

The response body is the PDF itself (application/pdf), so there is nothing to decode — write the bytes and you are done.

What renders

The engine is WeasyPrint: HTML + CSS, including print-specific CSS (@page, margin boxes, page counters). JavaScript in your document does NOT execute — if your page needs client-side JS to reach its final state, render that state into the HTML server-side first. External http(s) images, fonts and stylesheets are not fetched; inline them as data: URIs (how).

Try it free

Try it free — 100 renders a month, no card — or try the browser-based tool with zero setup.