Tcpdf - TCPDF: Open Source PHP Class for generating PDF documents
Screenshot Machine - Screenshot machine is an online website capturing service. Creates a screenshot or thumbnail of any online web page in couple of seconds for free.
HTML PDF API - Easily generate PDF documents from HTML code with our powerful API
URL2PNG - Screenshots as a Service. Capture snapshots of any website, right in your app, quickly and reliably.
HTML2PDF.fr - HTML2PDF is a HTML to PDF converter that allows the conversion of valid HTML 4.
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.