Pngcrush translations

Translations of pngcrush.html or older versions of it, are available:

• French by Nicolas Chevallier
• Polish by Patricia Motosan
• Portuguese by Artur Weber
• Russian by Science Blog
• Slovak by Katarina Hornik
• Spanish by Elina Bashlikova
• Swedish by Elina Bashlikova
• Ukrainian by B. Konopka (Dream Team)