KLayout
KLayout layout viewer and editor project page
KolourPaint - KDE
KDE Gwenview
Image Viewer
Glaxnimate
Glaxnimate is a simple and fast vector graphics animation program.
KPhotoAlbum
KPhotoAlbum: KDE Photo Album
Showfoto
Image Editor
digiKam
digiKam forum. digiKam is an advanced digital photo management application for Linux, Windows, and Mac-OSX.
Krita - Digital Painting