I know this question is old, but these days I'd try puppeteer

const puppeteer = require("puppeteer");

async function printPDF() {
  const browser = await puppeteer.launch({ headless: true });
  const page = await browser.newPage();
  await page.goto("http:///stackoverflow.com", {
    waitUntil: "networkidle0",
  });
  const pdf = await page.pdf({
    width: 1200,
    height: 1920,
    pageRanges: "1-2",
    path: "so.pdf",
  });

  await browser.close();
  return pdf;
}
printPDF();

Also see HTML to PDF with Node.js

Package installed by npm is located in /node_modules/ which cannot be used by front end directly. To use those modules, you need to use ES6 syntax and import them by using the following code:

// Just an example, you need to read the doc to see how to import
import html2cavas from "html2cavas"

However, browser cannot read ES6 syntax directly. As a result, you need to use Babel to transpile your ES6 code to normal JS code. See https://hackernoon.com/use-es6-javascript-syntax-require-import-etc-in-your-front-end-project-5eefcef745c2

After you transpiled your code, use the <script> tag to import the transpiled code.

Alternatively, you might be able to copy what you need from /node_modules/ and copy it to your js folder. However it is not recommended.