I am testing pupeter/headless chrome, pdf export stil has some bugs, I hit an issue with page sizing and I am stil using wkhtmltopdf for now, the bug is present in main Chrome save as PDF. Chrome has better font rendering and it knows to embed the web fonts into the pdf where in wkhtmltopdf I have to do it manually.

Link to size bug: https://github.com/GoogleChrome/puppeteer/issues/666