AODocs - AODocs is the document management solution recommended for G Suite. Secure your documents, structure your content, & automate your processes
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
Docomotion - Docomotion offers tools for designing and generating all types of transactional and operational business documents.
Tcpdf - TCPDF: Open Source PHP Class for generating PDF documents
infoRouter - infoRouter is a EDMS that includes Workflow, Document routing, Electronic Forms, Scanning, Storage, Archiving, Indexing & Records Management
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.