diff --git a/flutter/lib/desktop/pages/remote_page.dart b/flutter/lib/desktop/pages/remote_page.dart
index a7289335f..211d36c39 100644
--- a/flutter/lib/desktop/pages/remote_page.dart
+++ b/flutter/lib/desktop/pages/remote_page.dart
@@ -21,6 +21,7 @@ import '../../mobile/widgets/dialog.dart';
 import '../../models/model.dart';
 import '../../models/platform_model.dart';
 import '../../common/shared_state.dart';
+import '../../utils/image.dart';
 import '../widgets/remote_menubar.dart';
 import '../widgets/kb_layout_type_chooser.dart';
 
@@ -685,40 +686,3 @@ class CursorPaint extends StatelessWidget {
     );
   }
 }
-
-class ImagePainter extends CustomPainter {
-  ImagePainter({
-    required this.image,
-    required this.x,
-    required this.y,
-    required this.scale,
-  });
-
-  ui.Image? image;
-  double x;
-  double y;
-  double scale;
-
-  @override
-  void paint(Canvas canvas, Size size) {
-    if (image == null) return;
-    if (x.isNaN || y.isNaN) return;
-    canvas.scale(scale, scale);
-    // https://github.com/flutter/flutter/issues/76187#issuecomment-784628161
-    // https://api.flutter-io.cn/flutter/dart-ui/FilterQuality.html
-    var paint = Paint();
-    if ((scale - 1.0).abs() > 0.001) {
-      paint.filterQuality = FilterQuality.medium;
-      if (scale > 10.00000) {
-        paint.filterQuality = FilterQuality.high;
-      }
-    }
-    canvas.drawImage(
-        image!, Offset(x.toInt().toDouble(), y.toInt().toDouble()), paint);
-  }
-
-  @override
-  bool shouldRepaint(CustomPainter oldDelegate) {
-    return oldDelegate != this;
-  }
-}
diff --git a/flutter/lib/mobile/pages/remote_page.dart b/flutter/lib/mobile/pages/remote_page.dart
index 853f3168c..956b985a7 100644
--- a/flutter/lib/mobile/pages/remote_page.dart
+++ b/flutter/lib/mobile/pages/remote_page.dart
@@ -17,6 +17,7 @@ import '../../common/widgets/remote_input.dart';
 import '../../models/input_model.dart';
 import '../../models/model.dart';
 import '../../models/platform_model.dart';
+import '../../utils/image.dart';
 import '../widgets/dialog.dart';
 import '../widgets/gestures.dart';
 
@@ -898,32 +899,6 @@ class CursorPaint extends StatelessWidget {
   }
 }
 
-class ImagePainter extends CustomPainter {
-  ImagePainter({
-    required this.image,
-    required this.x,
-    required this.y,
-    required this.scale,
-  });
-
-  ui.Image? image;
-  double x;
-  double y;
-  double scale;
-
-  @override
-  void paint(Canvas canvas, Size size) {
-    if (image == null) return;
-    canvas.scale(scale, scale);
-    canvas.drawImage(image!, Offset(x, y), Paint());
-  }
-
-  @override
-  bool shouldRepaint(CustomPainter oldDelegate) {
-    return oldDelegate != this;
-  }
-}
-
 void showOptions(
     BuildContext context, String id, OverlayDialogManager dialogManager) async {
   String quality =
diff --git a/flutter/lib/utils/image.dart b/flutter/lib/utils/image.dart
index 1f0d5b0cd..7a6bcbc15 100644
--- a/flutter/lib/utils/image.dart
+++ b/flutter/lib/utils/image.dart
@@ -1,6 +1,8 @@
 import 'dart:typed_data';
 import 'dart:ui' as ui;
 
+import 'package:flutter/widgets.dart';
+
 Future<ui.Image> decodeImageFromPixels(
   Uint8List pixels,
   int width,
@@ -47,3 +49,40 @@ Future<ui.Image> decodeImageFromPixels(
   descriptor.dispose();
   return frameInfo.image;
 }
+
+class ImagePainter extends CustomPainter {
+  ImagePainter({
+    required this.image,
+    required this.x,
+    required this.y,
+    required this.scale,
+  });
+
+  ui.Image? image;
+  double x;
+  double y;
+  double scale;
+
+  @override
+  void paint(Canvas canvas, Size size) {
+    if (image == null) return;
+    if (x.isNaN || y.isNaN) return;
+    canvas.scale(scale, scale);
+    // https://github.com/flutter/flutter/issues/76187#issuecomment-784628161
+    // https://api.flutter-io.cn/flutter/dart-ui/FilterQuality.html
+    var paint = Paint();
+    if ((scale - 1.0).abs() > 0.001) {
+      paint.filterQuality = FilterQuality.medium;
+      if (scale > 10.00000) {
+        paint.filterQuality = FilterQuality.high;
+      }
+    }
+    canvas.drawImage(
+        image!, Offset(x.toInt().toDouble(), y.toInt().toDouble()), paint);
+  }
+
+  @override
+  bool shouldRepaint(CustomPainter oldDelegate) {
+    return oldDelegate != this;
+  }
+}