Hunter - Find all the email addresses related to a domain
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
Lead Finder - Find any email from a company in seconds. free
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
AnyMailFinder.com - Find anyone's email address
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.