Changes made to bookmarks, page order, page rotation, and annotations are
not saved until you explicitly save the document via the
Save icon 
in the view
specific toolbar. Saving creates a new document version. It also versions the
versions the bookmarks, page order, page rotation, annotations, document data, and
document content. This allows to navigate back through previous revisions to see all
changes made to the document.
In the Save Document Confirmation dialog, all changes performed on the document are selected. You have the option to choose not to save changes to these items by unmarking the corresponding save option(s).
Figure: Save Document Confirmation Dialog
To disregard the save process, click Close.