Docomotion - Docomotion offers tools for designing and generating all types of transactional and operational business documents.

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.

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

OpenKM - OpenKM is an easy to use powerful version control system that enables businesses efficiently and systematically capture, store, secure, manage, maintain and distribute corporate information assets with the goal of facilitating knowledge creation, op…

Tcpdf - TCPDF: Open Source PHP Class for generating PDF documents