qvPDF - qvPDF is a PDF creator for Windows, but you can also merge & split.
PDFCreator - PDFCreator converts every printable document to PDF and many other formats. Create professional PDFs with a few clicks and it's free. With many Professional Features: merge documents, send emails and more.
Vector Conversion Tool - Easily convert your Vector files to other formats and back
Foxit PhantomPDF - Edit PDF files with our feature-rich PDF Editor. Download Foxit PDF Editor to convert, sign, scan / OCR & more. A speedy PDF Editor alternative to Adobe Acrobat.
PDF my URL - PDFmyURL turns any webpage or even complete website into PDF. Use our rest API in PHP, .NET, Ruby, Perl or any other programming language. Or convert webpages or even full websites directly in the browser!
HRConvert2 - A self-hosted drag-and-drop file conversion server that supports 59x file formats.