ImBatch – is a free batch image processing tool for Windows. ImBatch features an excellent user interface that’s easy to use and understand and can convert, resize, rotate and carry out other operations on lots of images in a single operation.
ImBatch offers many imaging functions (Tasks) like converting, resizing or applying 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 to exclude/include them from the task processing list, hide some task parameters, leaving only the necessary ones. Also you can undo/redo all changes made in Task List.