XFA Specification

The XFA (XML Forms Architecture) specification defines a way to create, display, and process dynamic, interactive forms within PDF documents using XML technology. It allows forms to be flexible, with complex layouts and behaviors that can change in response to user input or other data. XFA separates the form's structure and data, making it easier to manage and update form content. This standard is often used in enterprise and government environments for complex, data-driven forms that require advanced interactivity beyond static PDFs.