Gotenberg — Branded PDF Microservice (Recommended for Customer-Facing Docs)

GitHub: https://github.com/gotenberg/gotenberg
License: MIT
Docker image: gotenberg/gotenberg:8

Accepts HTML via HTTP POST, returns PDF. No Node.js required — pure Docker container.

const form = new FormData();
form.append("files", new Blob([html], { type: "text/html" }), "index.html");
const res = await fetch("http://gotenberg:3000/forms/chromium/convert/html", {
  method: "POST", body: form,
});
const pdf = await res.arrayBuffer();

Use for: branded customer-facing settlement statements with logos, QR codes, and custom typography.