diff --git a/src/main/java/dev/bytevibe/hyperpoint/DrawingCanvas.java b/src/main/java/dev/bytevibe/hyperpoint/DrawingCanvas.java
index 912fcf3..06fc0ce 100644
--- a/src/main/java/dev/bytevibe/hyperpoint/DrawingCanvas.java
+++ b/src/main/java/dev/bytevibe/hyperpoint/DrawingCanvas.java
@@ -14,6 +14,10 @@ import javafx.scene.text.FontWeight;
  * 绘图Canvas组件，用于渲染和交互所有可绘制对象
  */
 public class DrawingCanvas extends Pane {
+    // 页面标准尺寸（与全屏播放保持一致）
+    public static final double PAGE_WIDTH = 1024;
+    public static final double PAGE_HEIGHT = 768;
+
     // 缩放点的枚举
     enum ResizePoint {
         TOP_LEFT, TOP_RIGHT, BOTTOM_LEFT, BOTTOM_RIGHT, NONE
@@ -32,7 +36,7 @@ public class DrawingCanvas extends Pane {
 
     public DrawingCanvas(PageContent pageContent) {
         this.pageContent = pageContent;
-        this.canvas = new Canvas();
+        this.canvas = new Canvas(PAGE_WIDTH, PAGE_HEIGHT);
 
         getChildren().add(canvas);
 
@@ -41,18 +45,11 @@ public class DrawingCanvas extends Pane {
         setOnMouseDragged(this::handleMouseDragged);
         setOnMouseReleased(this::handleMouseReleased);
 
-
         setStyle("-fx-border-color: #e0e0e0; -fx-border-width: 1;");
 
-        // 绑定Canvas大小到Pane大小
-        widthProperty().addListener((obs, oldVal, newVal) -> {
-            canvas.setWidth(newVal.doubleValue());
-            redraw();
-        });
-        heightProperty().addListener((obs, oldVal, newVal) -> {
-            canvas.setHeight(newVal.doubleValue());
-            redraw();
-        });
+        // 设置Pane的首选大小为页面尺寸，这样编辑界面显示时会按页面比例显示
+        setPrefWidth(PAGE_WIDTH);
+        setPrefHeight(PAGE_HEIGHT);
 
         // 初始绘制
         redraw();
diff --git a/src/main/java/dev/bytevibe/hyperpoint/PresentationWindow.java b/src/main/java/dev/bytevibe/hyperpoint/PresentationWindow.java
index cc782a4..88e0430 100644
--- a/src/main/java/dev/bytevibe/hyperpoint/PresentationWindow.java
+++ b/src/main/java/dev/bytevibe/hyperpoint/PresentationWindow.java
@@ -38,10 +38,9 @@ public class PresentationWindow {
     }
 
     private void initializeStage() {
-        // 页面标准宽高比 (4:3)
-        final double PAGE_WIDTH = 1024;
-        final double PAGE_HEIGHT = 768;
-        final double ASPECT_RATIO = PAGE_WIDTH / PAGE_HEIGHT;  // 4:3 = 1.333...
+        // 页面标准宽高比 (4:3) - 使用与编辑界面相同的尺寸
+        final double PAGE_WIDTH = DrawingCanvas.PAGE_WIDTH;   // 1024
+        final double PAGE_HEIGHT = DrawingCanvas.PAGE_HEIGHT; // 768
 
         // 设置全屏，获取屏幕分辨率
         stage.setFullScreen(true);
@@ -209,8 +208,8 @@ public class PresentationWindow {
         double canvasWidth = canvas.getWidth();
         double canvasHeight = canvas.getHeight();
 
-        final double PAGE_WIDTH = 1024;
-        final double PAGE_HEIGHT = 768;
+        final double PAGE_WIDTH = DrawingCanvas.PAGE_WIDTH;
+        final double PAGE_HEIGHT = DrawingCanvas.PAGE_HEIGHT;
 
         double scaleX = canvasWidth / PAGE_WIDTH;
         double scaleY = canvasHeight / PAGE_HEIGHT;
@@ -287,8 +286,8 @@ public class PresentationWindow {
         double canvasWidth = canvas.getWidth();
         double canvasHeight = canvas.getHeight();
 
-        final double PAGE_WIDTH = 1024;
-        final double PAGE_HEIGHT = 768;
+        final double PAGE_WIDTH = DrawingCanvas.PAGE_WIDTH;
+        final double PAGE_HEIGHT = DrawingCanvas.PAGE_HEIGHT;
 
         double scaleX = canvasWidth / PAGE_WIDTH;
         double scaleY = canvasHeight / PAGE_HEIGHT;
@@ -377,8 +376,8 @@ public class PresentationWindow {
         double canvasWidth = canvas.getWidth();
         double canvasHeight = canvas.getHeight();
 
-        final double PAGE_WIDTH = 1024;
-        final double PAGE_HEIGHT = 768;
+        final double PAGE_WIDTH = DrawingCanvas.PAGE_WIDTH;
+        final double PAGE_HEIGHT = DrawingCanvas.PAGE_HEIGHT;
 
         double scaleX = canvasWidth / PAGE_WIDTH;
         double scaleY = canvasHeight / PAGE_HEIGHT;
@@ -473,8 +472,8 @@ public class PresentationWindow {
         double canvasWidth = canvas.getWidth();
         double canvasHeight = canvas.getHeight();
 
-        final double PAGE_WIDTH = 1024;
-        final double PAGE_HEIGHT = 768;
+        final double PAGE_WIDTH = DrawingCanvas.PAGE_WIDTH;
+        final double PAGE_HEIGHT = DrawingCanvas.PAGE_HEIGHT;
 
         double scaleX = canvasWidth / PAGE_WIDTH;
         double scaleY = canvasHeight / PAGE_HEIGHT;
@@ -525,8 +524,8 @@ public class PresentationWindow {
         double canvasHeight = canvas.getHeight();
 
         // 页面标准宽高比
-        final double PAGE_WIDTH = 1024;
-        final double PAGE_HEIGHT = 768;
+        final double PAGE_WIDTH = DrawingCanvas.PAGE_WIDTH;
+        final double PAGE_HEIGHT = DrawingCanvas.PAGE_HEIGHT;
 
         // 计算缩放因子，保持宽高比
         double scaleX = canvasWidth / PAGE_WIDTH;