XFA Forms

ngx-extended-pdf-viewer supports XFA forms. These forms are organizing their fields in a tree structure. This tree structure shows in the field names reported by (formData). The field names are inspired by the field names the Java library iText uses, but without the array indexes.

In contrast, [formData] optionally allows you to use the unqualified field name (i.e. only the last part of the name). Of course, two-way binding converts this field name to a fully qualified name in (formData).

Note: If the field name matches several fields, the PDF viewer populates a random field. Or even all of them simultaneously. Do yourself a favor and avoid the ambiguity.

Unfortunately I cannot set up a demo, because until now, I've failed to find or create a demo file with a liberal license. I apologize for the inconvenience.