A Destination is a named end point (similar to an anchor in HTML) stored within the pages of the PDF document. Destinations allow you to set navigation locations that can be used either within the same PDF or across multiple PDFs. Using a destination is often recommended because, unlike a Bookmark or Hyperlink to a specific page, destinations are not affected by the addition or deletion of pages within the document.
Creating Destinations: How to view and create Destinations
Linking to Destinations: How to link to Destinations in the same or another PDF
Deleting Destinations: How to remove Destinations
Renaming Destinations: How to set a new name for the Destination
Setting Destination Location: Setting a new location for the destination