XnConvert is a powerful image converter and processor that can perform a
series of image manipulation actions for an entire batch of images. The
available actions include resizing, format conversion, cropping,
metadata removal, color and contrast adjustments, rotation, and much
more. You can also add watermarks or image frames to your pictures,
apply image masks and choose from various image filters and effects.Multiple
actions can be stacked and previewed for each step, and you can also
save the complete set of actions to a script file so they easily be
reloaded later.Other features include support for image renaming, EXIF data processing, drag-n-drop, RAW formats and more.