ReNamer - ReNamer is a very powerful and flexible file renaming tool, which offers all the standard renaming...
JPEGView - JPEGView is a small and fast viewer/editor for JPEG, BMP, PNG, GIF and TIFF images.
Bulk Rename Utility - Bulk Rename Utility: Free File Rename Utility for Windows. Bulk Rename Utility allows you to easily batch rename files and folders based upon many flexible criteria. Free Download.
Photoscape - high quality photo editing software, that enables you to fix and enhance photos.
Ant Renamer - Ant Renamer can rename large amounts of files and folders in few clicks.
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!