Apple iWork - iWork is an office suite by Apple.
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
Mellel - Home Page for Mellel: The word processor of choice for scholars, writers and long document writing. for Mac OS X and iOS.
Wondershare PDFelement - All-in-one PDF editor
Airborn - Create and edit documents online without sacrificing your privacy
Foxit Reader - Foxit Reader is a free and light-weight multi-platform PDF document viewer.