Nitro Software Ltd. engages in the development, marketing, and sale of document productivity software. It enables organizations and individuals to improve how they create, collaborate, form fill, sign, process and work with digital documents. It operates through the Subscription and Perpetual License and Support segments. The Subscription segment deals with the sale of software-as-a-service to businesses providing access to a license. The Perpetual License and Support segment includes the sale of perpetual license products, including optional support service, both direct to customers and to businesses. The company was founded by Sam Chandler and Rich Wenzel in May 2005 and is headquartered in Melbourne, Australia.