Supercapybara / Railway Templates
Gotenberg
Gotenberg is a stateless API that turns HTML, Markdown, URLs and Office files (Word, Excel, PowerPoint, LibreOffice formats) into PDF, using headless Chromium and LibreOffice. It can also merge, split, flatten and watermark PDFs. Apps in any language call it over HTTP instead of bundling a browser of their own.
Disclosure: deploy links carry the author's Railway referral code — the author receives a usage kickback when you deploy. The template itself is free to deploy; Railway usage charges apply.