Linux alternative/equivalent for AcDsee

digiKam

digiKam is an advanced digital photo management application for Linux, Windows, and Mac-OSX.  The people who inspired digiKam's design are the photographers like you who want to view, manage, edit, enhance, organize, tag, and share photographs under Linux systems.

http://www.digikam.org

darktable

darktable is an open source photography workflow application and RAW developer. A virtual lighttable and darkroom for photographers. It manages your digital negatives in a database, lets you view them through a zoomable lighttable and enables you to develop raw images and enhance them.

http://www.darktable.org

Shutter - Screenshot tool

Shutter is a feature-rich screenshot program. You can take a screenshot of a specific area, window, your whole screen, or even of a website – apply different effects to it, draw on it to highlight points, and then upload to an image hosting site, all within one window. Shutter is free, open-source, and licensed under GPL v3.


http://shutter-project.org