Thks a lot Jomiel and batvink,
a super help imediatelly
. Gwenview with the Extension is "nearly" or "as good as" gthumbs. The kipi Plugins does it. Until gthumbs comes again. I'll ask for compilation of gthumbs again. In future I'm not so shure wich is better
gthumbs or gwenview. KDE or Gnome. In the moment I'm on Cinnamon.