The father of three had been downloading child pornography between 2011 and 2015, while also running an online forum where such images could be shared.
The man was apprehended thanks to an Interpol warrant. He was found guilty of secretly filming his neighbour's young daughters as they used his toilet. He had previously also uploaded images of children from a nudist beach in Austria, reports Swiss news portal 20 Minutes.
Both the young girls were interviewed by investigating authorities, who confirmed that the man had not physically abused them.
The accused was also found guilty of appropriating a CD of family photos while housesitting his neighbour's home.
According to an expert who testified in court, the accused had suffered abuse as a child. The court in Lucerne sentenced the man to two years imprisonment, although that sentence was later changed to a course of therapy, and a 34,000 Swiss franc fine.
While the court judged that the acts were of limited harm, the presiding judge stated that there was a high chance the man could reoffend.