AODocs - AODocs is the document management solution recommended for G Suite. Secure your documents, structure your content, & automate your processes
Aspose.PDF for Java - Aspose.Pdf is a Java PDF component to create PDF documents without using https://alternativeto.
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
IronPDF - SDK for creating and editing PDFs.