IrfanView is a user-friendly image browser, converter and editor. It has features that include image viewing, management, comparison, red-eye removal, emailing, resizing, cropping and color adjustments. It supports all major graphic formats.
To install automatically IrfanView on your LiberKey, make sure you previously activated files associations from the "LiberKey Tools" menu.
You can then open the file directly to start the installation.