SysTools PDF Unlocker - PDF Unlocker software allows users to remove restrictions from PDF documents. Unlock PDF for copy, print, edit, sign, comment, etc., On any Windows & Mac OS. Also, remove known user-level password & owner level password security from PDF files.
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.
PDFFixer Corrupt PDF Viewer - Corrupt PDF Viewer is a small PDF program that allows users to open and view the corrupt PDF content instantly, and repair damaged PDFs by saving to new files or printing.
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
PDF Fixer - A PDF recovery tool repairs corrupt and damaged PDF files on Windows.
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request