Returns the internal name for the annotation text field.
- macOS 10.5–10.12Deprecated
The internal name for the annotation text field.
Field names are optional, internal names that identify text fields in a PDF form. You use field names with the
Note that multiple
PDFAnnotation objects with the same field name always have the same text associated with that field name. When text is entered into one of the objects, the text associated with that field name is changed in all objects. If you need to ensure unique text for a
PDFAnnotation object, you must give it a unique field name (you can use
set to do this).