FastStone Image Viewer - FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor.
Repostage - Print your Instagram photos with a hashtag
Photoscape - high quality photo editing software, that enables you to fix and enhance photos.
Polargram - Print your Instagram and Facebook photos with ease
IrfanView - IrfanView ... one of the most popular viewers worldwide.
Projector - Creative, collaborative tools for visual communication.