Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
pdflayer - Free, powerful HTML to PDF API supporting both URL and raw HTML conversion. Unlimited document size, lightning-fast and compatible PHP, Python, Ruby, etc.
Wondershare PDFelement - All-in-one PDF editor
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
MuPDF - MuPDF is a lightweight PDF and XPS viewer.
Tcpdf - TCPDF: Open Source PHP Class for generating PDF documents