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.
HiOperator - HiOperator is a virtual assistant that answers phone calls, chats with customers, provides in-app help, takes orders, and provides support.
Wondershare PDFelement - All-in-one PDF editor
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
Foxit Reader - Foxit Reader is a free and light-weight multi-platform PDF document viewer.
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.