Blog
Tutorials, guides, and deep dives on rendering, PDF generation, and document automation.
How to Generate WebP Images in Node.js
WebP is 30–50% smaller than PNG with the same quality and full alpha support. Here's every way to generate WebP server-side in Node.js — and which approach fits your stack.
How to Generate PDFs in Node.js Without Puppeteer
Puppeteer works, but it's 300 MB of Chrome you have to manage yourself. Here are the real alternatives — and when to use each one.
Converting HTML to Images in JavaScript: The Complete Guide
html2canvas, Puppeteer, or a render API? A practical comparison of every approach for generating images from HTML server-side.
How to Automate Invoice PDF Generation with an API
Stop exporting invoices by hand. Here's how to generate pixel-perfect branded PDF invoices automatically from your billing events.
The Complete Guide to OG Image Sizes and Meta Tags
1200x630, absolute URLs, summary_large_image — the exact dimensions and tags every platform expects, plus how to generate a correctly-sized image automatically instead of by hand.
Export Mermaid Diagrams as PNG or PDF Programmatically
The Mermaid CLI requires a headless browser anyway. Here's a simpler way to convert diagram syntax to portable images in your pipeline.