A Photo Tool (Libre)
A Photo Tool (Libre) is an image editing application with many tools for Linux. Free and open source program
Switcheroo
Switcheroo – converting, compressing and resizing an image. Free and open source program
Conjure
Conjure is a program for transforming images using ImageMagick. Free and open source program
Glaxnimate
Glaxnimate is an application for vector animation and motion design. Free and open source
HDFView
HDFView is a software for viewing HDF4 and HDF5 files.. Free and open source program
Trimage
Trimage is a tool for optimizing PNG and JPG files. Free and open source program
PicPlanner
PicPlanner – calculation of the position of the Sun, Moon and Milky Way to plan the perfect time to take a picture. Free and open source program
Eyedropper
Eyedropper is an easy-to-use color picker and editing tool. Free and open source program
Ristretto
Ristretto is an image viewer for the Xfce desktop environment. Free and open source program
KGeoTag
KGeoTag is a photo geotagging program. Free and open source