Apps similar to Tabula DX include PDFKeeper, which is free and open source. Other options are Benubird PDF and PDF Stacks. In total there are three Document Managers like Tabula DX for Windows and Mac.
PDFKeeper is free, open source document management software that integrates with a compatible, relational database to provide a centralized storage and management solution for PDF documents.
Benubird PDF makes personal document management simple: capture, organize and retrieve your PDF documents effortlessly. Managing files is easy with virtual folders and powerful metadata filters. Guaranteed to save you time and revolutionize the way you work with your documents.
Australia
With PDF Stacks, you can organize, find and browse, search, annonate and share your collection and library of PDF files, papers, research and journal articles with a single click. It saves you time: no more wondering around your computer to find a PDF file.
United States
