ksnip

Ksnip is a Qt based cross-platform screenshot tool that provides many annotation features for your screenshots.

Features:

Supports Linux (X11, Plasma Wayland, GNOME Wayland and xdg-desktop-portal Wayland), Windows and macOS.

Taking screenshot of a custom rectangular area that can be drawn with mouse cursor.

Taking screenshot of last selected rectangular area without selecting again.

Taking screenshot of the screen/monitor where the mouse cursor is currently located.

Taking screenshot of full screen, including all screens/monitors.

Taking screenshot of window that currently has focus.

Taking screenshot of window under mouse cursor.

Take screenshot with or without mouse cursor.

Capture mouse cursor as annotation item that can be moved and deleted.

Customizable capture delay for all capture options.

Upload screenshots directly to imgur.com in anonymous or user mode.

Upload screenshots via custom user defined scripts.

Command line support, for taking screenshot and saving it to default location, filename and format.

Filename wildcards for Year ($Y), Month ($M), Day ($D), Time ($T) and Counter (multiple # characters for number with zero leading padding).

Print screenshot or save is to pdf/ps.

Annotate screenshots with pen, marker, rectangles, ellipses, texts and other tools.

Annotate screenshots with stickers and add custom stickers.

Obfuscate image regions with blur and pixelate.