Generate Beautiful PDF Invoices from JSON in 3 Lines of Code

Need to generate invoices programmatically? Here's how to go from JSON to a professional PDF in seconds, no libraries to install. The Problem Every SaaS, freelancer platform, and e-commerce app needs invoices. The usual approach: Install a PDF library (ReportLab, WeasyPrint, Puppeteer) Design a template Handle fonts, margins, page breaks, currency formatting Debug why it looks different on every OS Maintain it forever Or... just send JSON and get a PDF back. The 3-Line Solution import requests r