Doculin - PDFGen API, minus infra hassle

The service provides a RESTful endpoint that accepts HTML markup and returns a generated PDF document. Clients send a JSON payload containing the HTML source, and the API responds with a job object that includes a direct download URL or webhook callback for the resulting file. The rendering engine supports modern CSS, custom fonts, images, and complex page layouts, aiming to produce production‑ready PDFs quickly.

It is intended for developers who need to automate PDF creation within applications, such as invoicing, reporting, or document archiving, without managing their own rendering infrastructure. The API can be called from any language that can perform HTTP requests, and example code is supplied for cURL, PHP, Node.js, and Python.

Key characteristics highlighted are fast generation in milliseconds, enterprise‑grade security with encrypted, non‑persistent data, and a service‑level agreement promising 99.9 % uptime. Pricing is tiered, starting with a free allowance of 100 PDFs per month, and plans can be adjusted as usage grows.