diff --git a/crates/engine/src/cmd/file.rs b/crates/engine/src/cmd/file.rs
index d5023372..aa2ea340 100644
--- a/crates/engine/src/cmd/file.rs
+++ b/crates/engine/src/cmd/file.rs
@@ -55,6 +55,13 @@ pub fn specs() -> Vec<CommandSpec> {
             false,
             save_as
         ),
+        spec!(
+            "file.markSaved",
+            "Mark saved",
+            "{}  clears the unsaved changes of the active tab's file and its branch tabs: run it once the file from `file.saveAs {data: true}` was delivered (a refused download keeps them)",
+            false,
+            mark_saved
+        ),
         spec!(
             "file.export",
             "Export",
@@ -869,24 +876,30 @@ fn save_to(s: &mut Session, path: Option<String>) -> Result<Value> {
         Arc::make_mut(&mut snapshot.doc).name = file_stem(path);
     }
     let bytes = snapshot.encode()?;
-    if let Some(path) = &path {
-        write(path, &bytes)?;
-    }
-    ds.doc = snapshot.doc;
-    if path.is_some() {
-        ds.path.clone_from(&path);
-    }
-    ds.mark_saved();
-    ds.revision += 1;
-    let (uid, name) = (ds.uid, format!("{}.figcraft", ds.doc.name));
-    branch_tabs_saved(s, uid);
     let Some(path) = path else {
+        // The download can still be refused: the caller marks the file saved once it was delivered.
+        let name = format!("{}.figcraft", ds.doc.name);
         return Ok(json!({"name": name, "bytes": bytes.len(), "data": base64::engine::general_purpose::STANDARD.encode(&bytes)}));
     };
+    write(&path, &bytes)?;
+    ds.doc = snapshot.doc;
+    ds.path = Some(path.clone());
+    mark_saved(s, &json!({}))?;
     remember(s, &path);
     Ok(json!({"path": path, "bytes": bytes.len()}))
 }
 
+/// The file of the active tab (with its branch tabs) now matches what was written or delivered.
+fn mark_saved(s: &mut Session, _: &Value) -> Result<Value> {
+    let i = crate::branches::file_tab(s);
+    let ds = s.docs.get_mut(i).ok_or(EngineError::NoDocument)?;
+    ds.mark_saved();
+    ds.revision += 1;
+    let uid = ds.uid;
+    branch_tabs_saved(s, uid);
+    Ok(json!({"saved": true}))
+}
+
 fn save(s: &mut Session, p: &Value) -> Result<Value> {
     if let Some(path) = string(p, "path") {
         return save_to(s, Some(path));
@@ -1590,7 +1603,7 @@ mod rest_import_tests {
     }
 
     #[test]
-    fn save_as_data_hands_back_the_file_and_marks_it_saved() {
+    fn save_as_data_hands_back_the_file_and_marks_it_saved_once_delivered() {
         // The browser has no paths: Save as returns the file for a download (#969).
         let mut s = Session::new();
         s.execute("shape.rectangle", &json!({"x": 0, "y": 0, "width": 10, "height": 10})).unwrap();
@@ -1598,6 +1611,8 @@ mod rest_import_tests {
         let recent = s.prefs.recent_files.clone();
         let r = s.execute("file.saveAs", &json!({"data": true})).unwrap();
         assert_eq!(r["name"], "Untitled.figcraft");
+        assert!(s.ds().unwrap().is_dirty(), "not delivered yet: a refused download must not lose the edits");
+        s.execute("file.markSaved", &json!({})).unwrap();
         assert!(!s.ds().unwrap().is_dirty());
         assert_eq!(s.ds().unwrap().path, None, "still no path to save over");
         assert_eq!(s.prefs.recent_files, recent, "nothing on disk to remember");
diff --git a/crates/engine/src/lib.rs b/crates/engine/src/lib.rs
index 79e7be0d..e32d7543 100644
--- a/crates/engine/src/lib.rs
+++ b/crates/engine/src/lib.rs
@@ -402,7 +402,8 @@ pub const PREVIEW_READ_ONLY: &str = "you're viewing an earlier version: restore
 
 /// Commands that first end a version preview: they act on the document itself. Saving does so
 /// only with a native destination; export copies and pending format choices keep the preview.
-const ENDS_PREVIEW: &[&str] = &["file.save", "file.saveAs", "file.close", "file.revert", "file.saveVersion", "file.duplicate", "version.restore"];
+const ENDS_PREVIEW: &[&str] =
+    &["file.save", "file.saveAs", "file.markSaved", "file.close", "file.revert", "file.saveVersion", "file.duplicate", "version.restore"];
 
 static NEXT_UID: std::sync::atomic::AtomicU64 = std::sync::atomic::AtomicU64::new(1);
 
diff --git a/crates/ui-egui/locales/es.toml b/crates/ui-egui/locales/es.toml
index bd572dbe..25f3f258 100644
--- a/crates/ui-egui/locales/es.toml
+++ b/crates/ui-egui/locales/es.toml
@@ -1920,6 +1920,7 @@ status = "draft — needs native review"
 "file.revert" = "Volver a lo guardado"
 "file.save" = "Guardar"
 "file.saveAs" = "Guardar como"
+"file.markSaved" = "Marcar como guardado"
 "file.saveVersion" = "Guardar en el historial de versiones"
 "file.versionHistory" = "Mostrar historial de versiones"
 "fill.add" = "Añadir relleno"
diff --git a/crates/ui-egui/src/lib.rs b/crates/ui-egui/src/lib.rs
index 788bbf4f..0707723d 100644
--- a/crates/ui-egui/src/lib.rs
+++ b/crates/ui-egui/src/lib.rs
@@ -1146,6 +1146,7 @@ impl FigApp {
             if let Some(r) = self.run("file.saveAs", json!({"data": true}))
                 && self.download(r["name"].as_str().unwrap_or_default(), &r)
             {
+                self.run("file.markSaved", json!({}));
                 dialogs::file_saved(self, &r);
             }
             return;
diff --git a/crates/ui-egui/src/web_save_tests.rs b/crates/ui-egui/src/web_save_tests.rs
index 5fbb2524..4879add1 100644
--- a/crates/ui-egui/src/web_save_tests.rs
+++ b/crates/ui-egui/src/web_save_tests.rs
@@ -52,6 +52,7 @@ fn a_refused_download_says_so() {
     app.save_as_dialog();
     assert_eq!(got.lock().unwrap().len(), 1);
     assert_eq!(toast(&app), "Couldn't download Untitled.figcraft");
+    assert!(app.session.ds().unwrap().is_dirty(), "no file arrived: closing must still warn about the edits");
 }
 
 #[test]