Question about PDF manipulation

This is sort of off-topic but it's for a Computer History Museum project that involves old computer brochures. We have a bunch of PDF's that have scanned brochure images contained within including the OCR'd text. Unfortunately, the PDF's were created with images files that are much too large. The images need to be extracted, re-sized, then re-inserted into the PDF. They can't use the original photos because the ones inside the PDF have been cropped and edited (independent of the originals...don't ask). Is there a combination of utilities (i.e. ImageMagick, tumble, etc.) that can automate this instead of having to re-create each PDF from scratch? There are hundreds. Thanks! -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]