The Xfce4-screenshooter is an application that can be used to take snapshots of your desktop screen.
Screenshot di Gnome
GNOME Screenshot hè una piccula utilità chì piglia una screenshot di tuttu
desktop; the currently focused window; or an area of the screen.
KSnip
Ksnip is a Qt based cross-platform screenshot tool that provides many annotation features for your screenshots.
Flameshot
Powerful yet simple to use screenshot software.