An interactive form (PDF 1.2)—sometimes referred to as an AcroForm—is a collection of fields for gathering information interactively from the user. A PDF document may contain any number of fields appearing on any combination of pages, all of which make up a single, global interactive form spanning the entire document. Arbitrary subsets of these fields can be imported or exported from the document; see Section 8.6.4, “Form Actions.”
Note
Interactive forms should not be confused with form XObjects (see Section 4.9, “Form XObjects”). Despite the similarity of names, the two are different, unrelated types of objects.