Node Gallery Bulk Operations extends the functionality of Node Gallery by providing a Views Bulk Operations integration. It does this by providing a default view that you can customize, and adds a "Bulk Operations" tab on gallery nodes when being viewed by someone with rights to edit image nodes. It uses batch API, so it will work on galleries with thousands of images without additional RAM.
Since it's customizable, you can set it up to manipulate whatever Views Bulk Operations can find, but here's what you can do out of the box:
- Change image weight (sort order)
- Change parent gallery (move images to a different gallery)
- Change the owner of the images
- Delete image nodes