Wondershare PDFelement - All-in-one PDF editor
Worldox - Worldox is a document and email management solution, that helps to manage share & access all digital content.
Foxit PhantomPDF - Edit PDF files with our feature-rich PDF Editor. Download Foxit PDF Editor to convert, sign, scan / OCR & more. A speedy PDF Editor alternative to Adobe Acrobat.
iManage - iManage started its services as document and file management and later on started to store contents as well and to let the businesses to store their files and data for a specified period.
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.
MS SharePoint - Share, organize, and discover information with Microsoft SharePoint. Learn about SharePoint Online, OneDrive for Business, and Apps for SharePoint