PDFMark is a HTML to PDF Conversion REST API. It allows developers to create PDF documents from raw HTML and CSS or a URL. Generated PDFs are saved in the cloud and are served to the end user via a CDN. PDFMark allows customizations of PDF like setting page size, orientation and margins. Header and footer can be inserted. PDFs can be watermarked and password protected and restrictions on copy, print and modification can be applied. Developers can also insert QR codes into the document body. There is also support for webhooks to notify the developers upon generation of PDFs.