In ACDSee 12 you can make one type of edit to many images. For example, if you need to resize multiple images you can use the Batch Resize tool. Or, if you need to rotate multiple photos by 90 degrees you can use the Batch Rotate/Flip tool.
You can speed up the batch editing workflow by tagging your files. For example, you can quickly tag the files you want to change, then click Tagged in the Organize pane to display all the tagged files in the File List pane. Then you can select the files and choose a batch tool.