SUPERIMPOSE X - Superimpose X is the most powerful and intuitive photo-editing application.
digiKam - Professional Photo Management with the Power of Open Source
BeautyPlus - BeautyPlus is a professional level of photo-editing app that makes it easy for you to edit your images as a professional photographer.
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!
FastStone Image Viewer - FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor.
Pic Effects - Pic Effects is the perfect photo editing application for adding funny things to your photos.