salon wrote:We are a public-law institution in broadcast section. Are we included within allowed free use as a "public authorities"?
XnView is free for non-commercial usage. So usage is typically free for: City councils, fire brigades, police, hospitals, schools, universities, high schools, public authorities, and sure enough private persons which do not make profit out of XnView's usage. It's correct to contact the author (Pierre E. Gougelet) if in doubt.
From what I understand, public-law institutions are also non-profit companies, so free usage might apply, here, too. But only Pierre can give a 100% answer. An answer from Pierre's side might take some few days.