diff --git a/crates/tools/src/shape.rs b/crates/tools/src/shape.rs
index 30e5b4c1..e5e3d51a 100644
--- a/crates/tools/src/shape.rs
+++ b/crates/tools/src/shape.rs
@@ -1,8 +1,8 @@
 //! Shape tools: Rectangle, Rounded Rectangle, Ellipse, Polygon, Star, Line Segment.
 //!
-//! Drag draws (Shift constrains to square/circle/45°, Alt draws from the centre); a click without a
-//! drag asks the UI for the size dialog (like Illustrator). ↑/↓ during a polygon/star drag change the
-//! side/point count.
+//! Drag draws (Shift constrains to square/circle/45°, Alt draws from the centre, Space held moves
+//! the shape being drawn); a click without a drag asks the UI for the size dialog (like
+//! Illustrator). ↑/↓ during a polygon/star drag change the side/point count.
 
 use serde_json::{Value, json};
 use vectorcraft_geom::{Point, Rect};
@@ -120,10 +120,15 @@ impl Tool for ShapeTool {
                 vec![]
             }
             PointerKind::Drag => {
-                let Some(s) = self.start else { return vec![] };
+                let Some(mut s) = self.start else { return vec![] };
                 let (pos, g) = crate::guides::snap_draw(cx, ev.pos, &[]);
                 self.guides = g;
                 let ev = &PointerEvent { pos, ..*ev };
+                // Space held while drawing: the shape moves with the pointer instead of growing.
+                if ev.mods.space && self.began {
+                    s += ev.pos - self.last;
+                    self.start = Some(s);
+                }
                 self.last = ev.pos;
                 self.mods = ev.mods;
                 let mut out = vec![];
@@ -239,6 +244,31 @@ mod tests {
         assert_eq!(t.pointer(&cx, &PointerEvent::new(PointerKind::Up, 50.0, 30.0)), vec![Action::Commit]);
     }
 
+    #[test]
+    fn space_moves_the_shape_being_drawn() {
+        let (d, _) = doc_with_rect();
+        let s = Selection::default();
+        let p = paint();
+        let cx = cx(&d, &s, &p);
+        let space = Mods { space: true, ..Default::default() };
+        let mut t = ShapeTool::new("rectangle");
+        t.pointer(&cx, &PointerEvent::new(PointerKind::Down, 50.0, 50.0));
+        t.pointer(&cx, &PointerEvent::new(PointerKind::Drag, 150.0, 120.0));
+        // Space held: the 100 × 70 rectangle follows the pointer.
+        let a = t.pointer(&cx, &PointerEvent::new(PointerKind::Drag, 250.0, 170.0).with_mods(space));
+        assert_eq!(a.last(), Some(&Action::Preview("shape.rectangle".into(), json!({"x": 150.0, "y": 100.0, "width": 100.0, "height": 70.0}))));
+        // Let go of Space: it grows again, from where it was moved to.
+        let a = t.pointer(&cx, &PointerEvent::new(PointerKind::Drag, 270.0, 190.0));
+        assert_eq!(a.last(), Some(&Action::Preview("shape.rectangle".into(), json!({"x": 150.0, "y": 100.0, "width": 120.0, "height": 90.0}))));
+        assert_eq!(t.pointer(&cx, &PointerEvent::new(PointerKind::Up, 270.0, 190.0)), vec![Action::Commit]);
+        // A star (drawn from its centre) moves its centre.
+        let mut t = ShapeTool::new("star");
+        t.pointer(&cx, &PointerEvent::new(PointerKind::Down, 50.0, 50.0));
+        t.pointer(&cx, &PointerEvent::new(PointerKind::Drag, 80.0, 50.0));
+        let a = t.pointer(&cx, &PointerEvent::new(PointerKind::Drag, 90.0, 60.0).with_mods(space));
+        assert!(matches!(a.last(), Some(Action::Preview(_, v)) if v["cx"] == 60.0 && v["cy"] == 60.0), "{a:?}");
+    }
+
     #[test]
     fn shift_square_alt_center() {
         let t = ShapeTool::new("ellipse");