From Zevrix Solutions:
LinkOptimizer is a workflow automation solution for Adobe InDesign. It works automatically with Adobe Photoshop to reduce the size of images linked to InDesign document by eliminating excessive image data. LinkOptimizer will automatically reduce the image resolution, scale and crop the images in Photoshop according to their dimensions in the InDesign document and the target resolution specified, and reimport them to InDesign at 100%. LinkOptimizer can also perform essential image adjustments: convert colors, apply sharpening, merge layers and delete hidden ones; convert image file formats (JPEG to TIFF, EPS to PSD etc.); run Photoshop action on each image - and much more.The software allows you to dramatically reduce the size of InDesign job, cut down on processing time and reduce production costs.