Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.

DocuShare - Enterprise content management & process automation platform

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.

IBM FileNet - Enterprise Content Management platform for large businesses

Wondershare PDFelement - All-in-one PDF editor

M-Files - M-Files is an enterprise information management system that helps users with organizing and managing documents.