Perfect Wiki - Build and organize your knowledge base of company resources without switching between workspaces

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.

Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.

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.

Dropbox Paper Mobile - Organize your team’s knowledge in a single place

Wondershare PDFelement - All-in-one PDF editor