Zeplin - Collaboration app for UI designers & frontend developers
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.
Pamela for Skype - A versatile and easy to use Skype audio and video recording software. Features
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.
ActiveWords - Auto correct on steroids
Wondershare PDFelement - All-in-one PDF editor