Hi @jCaltrans the DDX per se is ok, you would not even need the
mimetype. I used a static PDF and added an xlxs file and it showed up
allright.I have a feeling that your extraction of those attachments
already goes wrong. I did a quick DDX only approach which extracts and
adds. The file types remain what they were. This
pulls attachments from an XFA PDF and then I can use it to add to a
static PDF.The naming of the attachments source is generic. When you
generate your DDX you can dynamically se...