diff --git a/crates/ui-egui/src/dialogs.rs b/crates/ui-egui/src/dialogs.rs
index f1243f2d5e..141355344d 100644
--- a/crates/ui-egui/src/dialogs.rs
+++ b/crates/ui-egui/src/dialogs.rs
@@ -1344,18 +1344,24 @@ fn save_prompt(app: &mut PdfCraftApp, ctx: &egui::Context) {
         return;
     };
     let t = Tokens::get(ctx);
+    // Wrapping alone (#161) still let a long enough name (a web `?file=` URL has no limit) grow
+    // the prompt taller than the window (#236); 80 characters wrap to a few lines.
+    let shown = shorten_middle(&name, 80);
     let mut choice: Option<Option<bool>> = None;
     let modal = egui::Modal::new(egui::Id::new("save_prompt")).show(ctx, |ui| {
         ui.set_width(420.0);
         ui.horizontal(|ui| {
             ui.add(crate::icons::image("save", 22.0, t.accent));
-            ui.add(
+            let title = ui.add(
                 egui::Label::new(
-                    egui::RichText::new(crate::i18n::fmt(tl!("Save changes to “{name}” before closing?"), &[("name", &name)]))
+                    egui::RichText::new(crate::i18n::fmt(tl!("Save changes to “{name}” before closing?"), &[("name", &shown)]))
                         .font(theme::semibold(16.0)),
                 )
                 .wrap(),
             );
+            if shown != name {
+                title.on_hover_text(&name);
+            }
         });
         ui.add_space(6.0);
         ui.label(egui::RichText::new(tl!("Your changes will be lost if you don't save them.")).color(t.text_muted));
@@ -1381,6 +1387,19 @@ fn save_prompt(app: &mut PdfCraftApp, ctx: &egui::Context) {
     }
 }
 
+/// `name` cut to at most `max` characters by replacing its middle with "…", keeping the start and
+/// the end, where the extension and version suffixes sit. Counts `char`s, so it never splits one.
+fn shorten_middle(name: &str, max: usize) -> String {
+    let count = name.chars().count();
+    if count <= max {
+        return name.to_string();
+    }
+    let tail = max / 4;
+    let head: String = name.chars().take(max.saturating_sub(tail + 1)).collect();
+    let end: String = name.chars().skip(count.saturating_sub(tail)).collect();
+    format!("{head}…{end}")
+}
+
 /// "Open this web page?" when a document's link, button or script asks to open an address
 /// (#90, #91). Shows where the address really goes and the whole address; Cancel is the default,
 /// and Escape or clicking outside cancels.
diff --git a/crates/ui-egui/tests/editing.rs b/crates/ui-egui/tests/editing.rs
index 21baf309a7..3aed0f6cb0 100644
--- a/crates/ui-egui/tests/editing.rs
+++ b/crates/ui-egui/tests/editing.rs
@@ -411,6 +411,46 @@ fn save_prompt_stays_inside_the_screen_for_a_long_filename() {
     }
 }
 
+#[test]
+fn save_prompt_fits_the_smallest_window_whatever_the_name() {
+    // Issue #236: wrapping (#161) kept the prompt narrow, but a long enough name still grew it
+    // taller than the window and pushed the buttons off-screen. On the web a `?file=` URL names
+    // the document, so the name has no length limit. Long names now give way in the middle.
+    let names = [
+        format!("{}.pdf", "a".repeat(400)),
+        format!("{}.pdf", "Quarterly_Report_FY2026_Final_v3_".repeat(12)),
+        format!("{}.pdf", "รายงานประจำปีงบประมาณ".repeat(15)),
+        format!("{}.pdf", "年".repeat(251)),
+        format!("{}.pdf", "W".repeat(2000)),
+    ];
+    // The desktop window's minimum inner size (apps/pdfcraft/src/main.rs).
+    let size = egui::vec2(820.0, 520.0);
+    for name in names {
+        let start: String = name.chars().take(10).collect();
+        let mut h = Harness::builder().with_size(size).build_eframe(move |_cc| {
+            let mut app = PdfCraftApp::new();
+            app.open_bytes(&name, None, fixture(1)).expect("fixture opens");
+            app.close_request = Some(CloseRequest::Tab(app.views[0].id));
+            app
+        });
+        h.run_steps(4);
+        let screen = egui::Rect::from_min_size(egui::Pos2::ZERO, size);
+        let inside = |r: egui::Rect| screen.contains(r.min) && screen.contains(r.max);
+        let title = h.get_by_label_contains("Save changes to");
+        let title_rect = title.rect();
+        assert!(inside(title_rect), "{start}…: the title rect {title_rect:?} leaves the screen");
+        let opening = format!("Save changes to “{start}");
+        assert!(
+            h.query_by(|n| n.value().is_some_and(|l| l.starts_with(&opening) && l.contains('…') && l.contains(".pdf” before closing?"))).is_some(),
+            "{start}…: the title keeps the start and the extension"
+        );
+        for button in ["Save", "Cancel", "Don't save"] {
+            let rect = h.get_by_label(button).rect();
+            assert!(inside(rect), "{start}…: the {button} button rect {rect:?} leaves the screen");
+        }
+    }
+}
+
 #[test]
 fn document_properties_edit_is_one_undoable_step() {
     let mut h = harness(1, |app| app.set_option("dialog", "properties").unwrap());