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.
Quarterly Tax Calculator Bot - Quarterly tax calculation for freelancers
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
Social Media Pricing Calculator - Planable, along with pricing experts from Soft Fight, built the pricing calculator that agencies & freelancers need.
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
Stripe Atlas Taxes - Help file your business taxes