There aren't too many applications available for photo editing and organizing when working with Linux, and it seems that GIMP is the only serious alternative at this moment, a tool that despite being very complete, isn't the most suitable application for those users that only want to optimize, rename or catalog their photo collection.
Greate image manager for Linux
Shotwell is a simple utility thanks to which in a couple of clicks we will be able to crop or rotate any image, eliminate red eyes and adjust the tone (exposure, saturation, color, temperature and shadows), as well as being able to leave it in the applications hand, because it includes a feature that allows it to improve our photos automatically.
Discover an application that will help your images to gain quality.
The non-destructive editing of Shotwell allows us to try out different configurations on each image until we obtain the desired effect, without having to worry about not being able to return the file to its previous state.
The other great feature of the application is that it allows us to catalog our photo collection so that we can quickly access related photos.