PDF Compression Tool

Please develop an? executable PDF compression tool that can flatten and remove all extras as well as perform DPI reduction (100,200,300 and 400 DPI options). The compression tool must process subfolders in batch mode and give options for moving the original source file to a new location as well as the destination of the compressed file. Must work with single and multi-paged PDF's and not alter the original file dimensions (height and width). Error free, fast processing is of the upmost importance. Software shall be used for BATCH processing PDF files prior to making them available for on-line Web viewing and have the ability to do sub-folders. Our goal is to reduce the dpi for individual sheets and therefore reduce the overall file size of a multi-paged PDF. Additionally we want to flatten the PDF (i.e.: remove embedded extras and leave only the original image). We will also accept a utility that can extract the image (only) from an existing PDF file and perform similar functions as described above.