diff --git a/src/routes/+page.svelte b/src/routes/+page.svelte
index 6999c11..e8e3345 100644
--- a/src/routes/+page.svelte
+++ b/src/routes/+page.svelte
@@ -70,6 +70,7 @@
 				Select the "paint" tool to draw on the canvas (you can also change the color and stroke
 				width)
 			</li>
+			<li>Zoom with + and - or pinch on mobile</li>
 			<li>Send this website to your friends to draw together</li>
 		</ul>
 
diff --git a/src/routes/Draw.svelte b/src/routes/Draw.svelte
index e9ca7bd..97aa485 100644
--- a/src/routes/Draw.svelte
+++ b/src/routes/Draw.svelte
@@ -287,6 +287,12 @@
 			} else if (e.code === 'KeyD') {
 				scope?.view.translate(new paper.Point(-move, 0));
 			}
+
+			if (e.key === '-') {
+				onZoom(0.2, [window.innerWidth / 2, window.innerHeight / 2]);
+			} else if (e.key === '+') {
+				onZoom(-0.2, [window.innerWidth / 2, window.innerHeight / 2]);
+			}
 		});
 
 		const gesture = new PinchGesture(canvas, (e) => {