XFA forms aren't read yet, and opening one gave no hint: a dynamic XFA form
showed only its "Please wait…" placeholder page, and a static one looked like
an ordinary form though Acrobat shows its XFA data in preference to the
fields that get filled.
- render: DocInfo.xfa (Static / Dynamic) from /AcroForm /XFA; dynamic when
/NeedsRendering is true or there are no fields. Exported for doc_info
(automation and CLI) as "xfa".
- ui: the notice bar explains each case (above the form-fields notice); a
static form keeps its Highlight fields button.
- Tests: tests/xfa.rs (dynamic with and without /NeedsRendering, static,
ordinary forms, a malformed /XFA). Parity notes for form.xfa-static and
form.xfa-dynamic (still planned: this explains XFA, it doesn't support it).
Reported by @Sudachi-dev.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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