To which public documents does the Apostille is affixed?

The Apostille is affixed to public documents, such as:

• documents emanating from an authority or an official connected with the courts or tribunals of the State, including those emanating from a public prosecutor or a clerk of a court;
• administrative documents;
• notarial acts;
• official certificates which are placed on documents signed by persons in their private capacity, such as official certificates recording the registration of a document or the fact that it was in existence on a certain date and official and notarial authentications of signatures. http://www.admin.ch