ImBatch

ImBatch is a batch image processing tool.

ImBatch has an excellent user interface that is easy to use, easy to understand and you can convert, resize, rotate and perform other operations on many images in one operation.
>
> You can combine tasks for a processing sequence that gives you exactly what you want.

ImBatch offers many imaging features such as converting, resizing, or applying a watermark. You can change the order of tasks, add some tasks twice or more (for example to convert images to JPEG and PNG in one go), turn off/on tasks exclude/include from the task processing list, hide some task parameters. You can also see all undo/redo changes made to the task list.

ImBatch handles all popular image formats such as: BMP, TIFF, GIF, JPEG, PCX, PNG, TGA, PIX, JP2, J2K, PSD, WDP, HDP.

ImBatch is also distributed with 3 official plugins (dcraw, ImageMagick, JBIG) that expand the number of supported file formats. If all plugins are enabled, ImBatch supports over 100 image file formats, including those in RAW format from many digital cameras.