An extreme free PDF compressor to reduce the size of PDF files on Windows and Mac, while maintaining the maximum quality.
Wondershare PDFelement - All-in-one PDF editor
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.
PDF-XChange Editor - The smallest, fastest, most feature-rich PDF editor/viewer available
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
Nitro Pro - An affordable Adobe Acrobat alternative for editing and creating PDF
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request