diff --git a/ROADMAP.md b/ROADMAP.md
index 8443ae9e6..054d0f28a 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -388,7 +388,7 @@ list) · [roadmap.md](docs/roadmap.md) (milestones, plan) · [parity-checklist.m
 
 Newest first.
 
-- **2026-10-31** · A `.designcraft` file opened from bytes (`file.openBytes` with its file name, as a browser or host passes it) is titled without the extension, as an IDML file opened that way is. Saving it in the browser downloaded `Brochure.designcraft.designcraft`, and the File Name variable showed the doubled name. No readiness percentage change.
+- **2026-10-31** · A `.designcraft` file opened from bytes (`file.openBytes` with its file name, as a browser or host passes it) is titled without the extension, as an IDML file opened that way is. Saving it in the browser downloaded `Brochure.designcraft.designcraft`, and the File Name variable showed the doubled name. Browser Open and Drop pass the full file name, so only the engine removes the extension and a repeated suffix is kept in the title. No readiness percentage change.
 - **2026-10-30** · Import warnings about a story have a Show button: it closes the warnings (the status line keeps them) and selects the story's first frame, fitted in the window. `file.open` returns `warningItems`, the frame each IDML or InDesign warning is about (or null), matching the converter's INDD story numbers (`story 30892`, written to IDML as `u78ac`) and IDML `Self` names to the imported stories. No readiness percentage change.
 - **2026-10-30** · Parent pages: a running-header variable shows its name in angle brackets on the parent itself (it was blank), as InDesign shows it; on the document pages, and in text with no page, it shows its text as before. No readiness percentage change.
 - **2026-10-30** · Without facing pages, a page of a multi-page spread shows the parent page in its place, as in InDesign: the second page of a two-page spread shows the parent's second page. Every single-sided page showed the parent's first page, so an InDesign book set up without facing pages but laid out in two-page spreads repeated the left parent page's items (a black heading bar) on its right pages and lost the right parent page's. No readiness percentage change.
diff --git a/crates/ui-egui/src/app/files.rs b/crates/ui-egui/src/app/files.rs
index b5de53ab1..68155d884 100644
--- a/crates/ui-egui/src/app/files.rs
+++ b/crates/ui-egui/src/app/files.rs
@@ -161,8 +161,7 @@ impl DesignApp {
         } else if place {
             self.open_file("file.place", json!({"name": file.name, "base64": b64}))
         } else {
-            let title = file.name.rsplit_once('.').map_or(file.name.as_str(), |(stem, _)| stem);
-            self.open_file("file.openBytes", json!({"name": title, "base64": b64}))
+            self.open_file("file.openBytes", json!({"name": file.name, "base64": b64}))
         }
     }
 
@@ -377,7 +376,7 @@ mod import_warning_tests {
         let request = app.import_request("open");
         app.services.inbox.as_ref().unwrap().lock().unwrap().push(ImportedFile { request, name: "partial.idml".into(), bytes: idml(true) });
         app.drain_inbox();
-        assert_partial_import_warning(&mut app, "partial");
+        assert_partial_import_warning(&mut app, "partial.idml");
     }
 
     #[test]
@@ -424,6 +423,34 @@ pub(crate) mod browser_import_tests {
         app.services.inbox.as_ref().unwrap().lock().unwrap().push(ImportedFile { request, name: name.into(), bytes });
         app.drain_inbox();
     }
+
+    /// A document chosen or dropped in the browser is titled by its file name less one extension,
+    /// as on the desktop: the extension comes off once, in the engine.
+    #[test]
+    fn browser_opens_title_a_document_by_its_name_without_one_extension() {
+        let mut app = app();
+        let native = designcraft_engine::cmd::base64_decode(app.run("file.serialize", json!({})).unwrap()["base64"].as_str().unwrap());
+        for purpose in ["open", "drop"] {
+            for (name, title) in [
+                ("Brochure.designcraft", "Brochure"),
+                ("Brochure.designcraft.designcraft", "Brochure.designcraft"),
+                ("Brochure.v2.designcraft", "Brochure.v2"),
+                ("日本.DESIGNCRAFT", "日本"),
+                (".designcraft", ".designcraft"),
+                ("Brochure", "Brochure"),
+            ] {
+                let request = app.import_request(purpose);
+                deliver(&mut app, request, name, native.clone());
+                assert_eq!(app.session.doc().unwrap().doc.title, title, "{purpose}: {name}");
+            }
+        }
+        let idml = designcraft_idml::export_idml(&app.session.doc().unwrap().doc);
+        for purpose in ["open", "drop"] {
+            let request = app.import_request(purpose);
+            deliver(&mut app, request, "Brochure.idml", idml.clone());
+            assert_eq!(app.session.doc().unwrap().doc.title, "Brochure", "{purpose}: IDML");
+        }
+    }
     fn image() -> Vec<u8> {
         br##"<svg xmlns="http://www.w3.org/2000/svg" width="10" height="10"><rect width="10" height="10" fill="#ff0000"/></svg>"##.to_vec()
     }