PdfDocumentCheckpointingStrategy

A checkpoint is never created automatically.

A checkpoint is created periodically, if the document has unsaved changes.

A checkpoint is created as soon as the annotations in the document are modified, added, or removed.

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Returns an array containing the constants of this enum type, in the order they're declared. This method may be used to iterate over the constants.