XFDF

File Format
Name	XFDF
Ontology	Electronic File Formats Serialization XFDF
Extension(s)	.xfdf
MIME Type(s)	application/vnd.adobe.xfdf

XFDF (XML Forms Data Format) is a format for storing and transferring data entered into a form in a PDF file. It is an XML-based alternative to FDF.

Specifications

• XML Forms Data Format Specification, Version 3.0