GMAN33,
I recently bought a copy of Professor Millet's VisualCUT software, and I've become a big fan. It will not only save a crystal report into a single PDF, with a bookmark for each group name, but it can also "burst" into separate pdf document for each group element.
Moreover, it can do the same for Excel - creating either a single workbook with a worksheet/tab for each group element, or an individual workbook for each group element. One of the best features is that you can also burst to email - sending a single message, or routing to different recipients for each group element. (e.g. you have a report that groups based on your sales people. VisualCUT could create a pdf for each sales person, and attach each person's file, and send an email to each sales rep...)