Once the flag is gone, viewers show each field's stored appearance, so a
filled field whose /AP /N draws no text (a /Tx BMC EMC placeholder or a
stale look) went blank. Session::sign and sign_with_timestamp now sign the
copy with_field_appearances draws, as the document is displayed, when the
signature is the first. A field whose own appearance draws text keeps it
where PdfCraft's drawing would show a character as `?`.
The earlier-signature check is now pdfcraft_sign::has_signatures, shared by
the engine and the signer, and it also finds signed fields without a /T.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
vangel76andClaude Opus 5.5
d4b8c94a00