Hi Advithiya,You may try the below DDX. However the XFAData element being used here allows to merge data into PDF , for an XFA based form.<DDX xmlns="http://ns.adobe.com/DDX/1.0/"> <PDF result="output.pdf"><PDF source="test1.txt" /><PDF source="test2.docx" /> <PDF source="testform3.pdf" baseDocume...