PDFzorro - PDFzorro is a web based source for enjoying the professional level of PDF editing.
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.
DocFly - The Best Online PDF Editor. Create, Edit & Convert up to 3 PDF Files a month for FREE with the best free pdf editor!
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
FoxPDF PDF Editor Ultimate - FoxPDF PDF Editor Ultimate is an all in PDF creator, editor and Word editor that is expert in perming multiple functions in addition to performing simple creating and editing functions.
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request