SharePoint 2007 (MOSS) Search Won't Crawl PDF's

We had a SharePoint 2007 (MOSS) implementation with many, many PDF documents. We installed the Adobe IFilter and crawled the site, but the conents of the PDF file were not being indexed. The icon showed up correctly, searches on document titles worked ok, but the PDF content was not searchable. Now for the fix! We had to install the IFilter on the database server.