The Print CSS features covered thanks to these renderers are: Running Headers and Footers, Counters and Cross References, Page Margin Boxes, Footnotes, Page Selectors and Page Breaks, JavaScript Support.
The API is currently in alpha status, and I would really appreciate your feedback! Till the final Go-Live, I only have a free plan including 500 requests per month, which should be more than enough to give you an idea of the possibilities and test the API. If you still need more requests for testing, please let me know.
Learn more about the PrintCSS Cloud in my detailed article https://medium.com/printcss/introducing-printcss-cloud-68662....