Morrow Systems, LLC
Morrow Systems, LLC makes PDF Flattener, a downloadable app that strips metadata out of PDF files. It has a free version and a paid license with no limits.
PDF Flattener
Strip metadata out of your PDFs. Free for up to 3 documents of up to 5 pages each, or $20.00 USD one time for unlimited use.
Questions? Email support@morrowsystems.net.