POINT - Awesome link sharing/commenting with friends.
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.
LiquidText - LiquidText improves upon the reading experience by allowing users to better synthesize, visualize and collaborate over digital text.
Wondershare PDFelement - All-in-one PDF editor
Stellate.co - Everything you need to run your GraphQL API at scale
Foxit Reader - Foxit Reader is a free and light-weight multi-platform PDF document viewer.