Zeyu LiandBrandon Thomas f52c92882d M9: signature labels follow the interface language, and one the font can't draw is refused, never written as ? (#1951) ...

* M9: signature labels follow the interface language, and one the font can't draw is refused, never written as ?

The labels of a visible signature ("Digitally signed by", "Reason: ", ...) were written in WinAnsi unchecked, and every caller passed the English defaults. Now:

- sign: a drawn label is checked as the details are, and one Helvetica can't draw is refused (SignError::Unsupported) naming the label and the character. AppearanceLabels::fields and ::first_undrawable say which labels a caller can use.
- ui-egui: signing stamps the labels in the interface language when Helvetica can draw all of them, otherwise all in English (never a mix) with a note under the preview. The preview uses the same labels, the stamp's line layout and the signing time.
- automation: sign_document takes optional labels and appearance; a label the font can't draw, an unknown key or one without a visible signature is InvalidArgs.
- Catalogs: the five labels and the note in every language; refresh hashes.

Follows up the note on #1112.

* Refresh catalog hashes after merging main

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Co-authored-by: Brandon Thomas <echelon@gmail.com>

2026-10-15 02:32:38 -04:00

..

acrobat-features.toml

M9: signature labels follow the interface language, and one the font can't draw is refused, never written as ? (#1951)

2026-10-15 02:32:38 -04:00