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.
Cold Email Hacks - Proven cold email templates and tactics for B2B startups
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
Cold Email Analyzer by Mailshake - Real-time analysis of email subject lines and copy
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
Mailshake - Mailshake lets you build your professional network through a smart and intuitive approach to cold emailing.