Never saves annotations or form field values automatically. Annotations and form field values can still be saved via Instance#save
In this mode, document signatures validation information will not be automatically updated if the document is modified, until changes are saved.
Saves immediately whenever an attribute of the annotation changed, or whenever a form field value got updated.
Saves annotations automatically, when the user finishes editing an annotation. For form fields, this behaves like AutoSaveMode.IMMEDIATE.
When working with annotations and form field values, there are multiple options when the data can get saved. The AutoSaveMode controls this behavior.