DocumentXfa Property

Whether the document is an XML Forms Architecture (XFA) or a PDF document

While XFA documents may seem like regular PDF documents they are not and cannot be processed by many components (error UnsupportedFeatureException). An XFA form is included as a resource in a mere shell PDF. The PDF pages' content is generated dynamically from the XFA data, which is a complex, non-standardized process. For this reason, XFA is forbidden by the ISO Standards ISO 19'005-2 (PDF/A-2) and ISO 32'000-2 (PDF 2.0) and newer. It is recommended to convert XFA documents to PDF using an Adobe product, e.g. by using the "Print to PDF" function of Adobe Acrobat Reader.

public XfaType Xfa { get; }