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fix(fonts): subset added TrueType fonts to used glyphs on document save

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This commit is contained in:
Combiler01
2026-10-25 15:35:28 +05:30
parent 4696dd2f42
commit 42b2a3ebdb
4 changed files with 768 additions and 6 deletions
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crates/engine/src/lib.rs
+7 -3
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@@ -4484,12 +4484,14 @@ impl Session {
// file so that revision stays in the chain. A full rewrite (redaction, new encryption,
// a reconstructed file) still writes the current graph on its own.
let rewrite = editor.cos.full_save_required() || editor.cos.encryption_changed() || editor.cos.revisions().is_empty();
let mut cos = editor.cos.clone();
pdfcraft_edit::text::subset_document_fonts(&mut cos)?;
guard(|| {
if on_saved || rewrite {
write_incremental(&editor.cos, &opts)
write_incremental(&cos, &opts)
} else {
let mut base = pdfcraft_cos::Document::open_with_password(editor.saved.clone(), editor.saved_keys.reopen.as_deref())?;
base.overlay_changes_from(&editor.cos)?;
base.overlay_changes_from(&cos)?;
write_incremental(&base, &opts)
}
})
@@ -4506,7 +4508,9 @@ impl Session {
}
let editor = doc.editor.as_ref().ok_or_else(|| EditError::ReadOnly(doc.read_only_reason.clone().unwrap_or_default()))?;
let opts = SaveOptions { mod_date: self.now().map(pdfcraft_cos::pdf_date), ..SaveOptions::default() };
guard(|| write_full(&editor.cos, &opts)).map_err(EditError::Write)?.map(Arc::new).map_err(|e| EditError::Write(e.to_string()))
let mut cos = editor.cos.clone();
pdfcraft_edit::text::subset_document_fonts(&mut cos)?;
guard(|| write_full(&cos, &opts)).map_err(EditError::Write)?.map(Arc::new).map_err(|e| EditError::Write(e.to_string()))
}
/// Check that `bytes`, from [`Self::save_bytes`] or [`Self::save_full_bytes`], reopen as this