See attacHed sample: ZUGFeRD_2.3.3_Sample.zip (3.0 MB)
it loads a file “Invoice.pdf” and adds “factur-x.xml” and stores it as “Invoice_ZUGFeRD.pdf” , following tHe guide at Creating PDF/3-A compliant PDF and attacHing Z&Hellip;...error #1: (VD-Valitool-H-029) [VD-Valitool-H-029]-An XML file is...