Review follow-up (CodeRabbit on #3488): a form an earlier PdfCraft made
should work in Acrobat once it has been filled here too, not only once a
field is added or edited. set_value now runs the same conversion (shared
with ensure_form through inline_fonts_as_objects and store_form_fonts);
it adds nothing, only changes where the existing fonts are stored.
Not in a form a signature covers (a signature field with /V): there the
file stays as the signer saw it apart from the value. PdfCraft's own
change check counts a /DR change after a form-fill certification as form
fill, but another validator may not.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>