Stacker is an image processing software that enables you to manipulate groups of images and apply a series of actions to them, including resizing, drop shadows, image frames, watermarks, color corrections, contrasts adjustments and more. You can combine multiple actions into a `stack` and save them to be reused later. The program also offers a several post-processing options enable you to automatically compress the processed files into a zip archive, create a basic image gallery, upload them to your Flickr account or send them by email.

The license of this software is Free Trial Software, the price is $29.99, you can free download and get a free trial.