PDF Xchange is a tool that lets you view or add markups to PDF documents. The free PDF-XChange Editor enables users to also try the advanced features available in PDF-XChange Editor PRO in a free evaluation mode. PDF-XChange Editor, successor of PDF-XChange Viewer, is leaner, faster, and more feature-rich than any other free PDF viewer or editor currently available. Plus, it also provides a large library of legal forms which you can fill online and then download as a PDF or normal word document.
Simply, you just need to upload the PDF files to edit them. Yet another best free PDF editor for Mac is FormSwift, a quite different PDF editor tool than others.