But now, GreenPrint is offering a free version of the software for non-business use, supported by advertising.

CNN: Software saves trees, cash and headaches, says creator

GreenPrint tells users how many pages, and how much money, they have saved.

CNN: Software saves trees, cash and headaches, says creator

Ms Wood was leading a debate on her parties consultation document 'Greenprint for the Valleys', on 13 June 2012.

BBC: Plaid Cymru debate

With GreenPrint, it takes a few extra seconds to print.

CNN: Software saves trees, cash and headaches, says creator

The International Finance Corporation, a member of the World Bank, is using GreenPrint in a pilot project, sending feedback to the company to help fine-tune the software for the corporation's needs.

CNN: Software saves trees, cash and headaches, says creator