BirdPDF - Simple URL to PDF / PNG conversion API with many features
Doppio.sh - From HTML to PDF or PNG with the world leading rendering technology
HelloPDF - Generating a PDF from a URL has never been easier
WkHTMLtoPDF Service - Render html to pdf without the headache of infrastructure
ApiFlash - ApiFlash is a powerful serverless screenshot API built with Chromium and AWS Lambda. It can easily scale to millions of screenshots per day and has an ever growing number of satisfied big clients.
PlutoPDF - A URL to PDF converter wrapped behind a simple API.