Userparser - Get user geolocation, crawler, browser, operating system, and device names using real-time, lightweight JSON response user agent parser, and ip lookup API.
PDFCrowd - Pdfcrowd is a Web/HTML to PDF online service. Convert HTML to PDF online in the browser or in your PHP, Python, Ruby, .NET, Java apps via the REST API.
ipgeolocation.io - Free IP Geolocation API and Accurate GeoIP Lookup Location Database
DocRaptor - As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more
ipinfo.io - Simple IP address information.
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request