Cleaning a PDF professionally consists of various elements and to do all of the at one-stop, the best solutions are either to get the Pro Adobe Acrobat (which is too expensive) or the RecoveryTools PDF Manager (certified, cost-effective, and easy to use).  This PDF cleaner has various options including compressing, removing blank pages, removing metadata, adding expiry date, removing images, and so on.

Over and above that it is an offline and standalone solution which follows strict privacy rules, so there is no risk of data loss at all. You can also download its free demo version to test its efficiency to clean PDF document without any hitch and glitch. This is the best PDF cleaner available in the market.