diff --git a/.gitignore b/.gitignore
index 2e1a675..cd2a080 100644
--- a/.gitignore
+++ b/.gitignore
@@ -49,7 +49,7 @@ app.*.map.json
 *.deb
 *.tar.gz
 *.exe
-!dist/imajviewer_1.6.0_amd64.deb
+!dist/imajviewer_1.6.1_amd64.deb
 !dist/imajviewer_setup_1.1.0.exe
 deb/usr/lib/imajviewer/
 release/
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7a872bb..00223e4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,11 +4,18 @@ All notable changes to imajViewer are documented in this file.
 
 ## [Unreleased]
 
+## [1.6.1] - 2026-10-14
+
+### Fixed
+- Horizontal flip shortcut (`Ctrl+R`) never fired when the keyboard layout resolves the R key to a
+  different logical key (reported with a Turkish/remote-desktop setup where the R key arrives as
+  logical `T`). The shortcut now matches the physical R key position as well.
+
 ## [1.6.0] - 2026-10-14
 
 ### Added
-- Horizontal flip (`R` key): mirrors the image left-right about the viewport centre and clears
-  the active effects (same reset as double right click); pressing `R` again restores the
+- Horizontal flip (`Ctrl+R`): mirrors the image left-right about the viewport centre and clears
+  the active effects (same reset as double right click); pressing `Ctrl+R` again restores the
   original orientation. Zoom/pan are kept.
 - Crop save (`Ctrl+S`) now bakes the flip into the output as well, so the saved JPEG matches
   the mirrored view (also in combination with rotation).
diff --git a/README.md b/README.md
index e4a23bf..89d5eb0 100644
--- a/README.md
+++ b/README.md
@@ -18,8 +18,9 @@ Ultra-lightweight image viewer written in Flutter — Linux & Windows.
 - **Saturation:** Ctrl + Right drag + vertical move
 - **Brightness:** Ctrl+Shift + Right drag + vertical move
 - **Rotate:** Shift + Right drag + vertical move (~100px = 90°)
-- **Flip horizontally:** `R` — mirrors the view and clears the active effects (same reset as
-  double right click); press `R` again to undo
+- **Flip horizontally:** `Ctrl+R` — mirrors the view and clears the active effects (same reset as
+  double right click); press `Ctrl+R` again to undo. Also matches the physical R key position, so
+  keymaps that report the R key as a different character still work
 - **Reset (all effects):** Double right click
 - **Navigation arrows:** bottom corners, visible on hover
 - **Settings (gear):** sort by time/name, print, shortcut info
@@ -88,7 +89,7 @@ folder including `imajviewer.exe` and all DLLs).
 | Ctrl + Right drag + vertical | Saturation (0.0 – 2.0) |
 | Ctrl+Shift + Right drag + vertical | Brightness (-100 – 100) |
 | Shift + Right drag + vertical | Rotate (free) |
-| R | Flip horizontally (clears effects; press again to undo) |
+| Ctrl + R | Flip horizontally (clears effects; press again to undo) |
 | Double right click | Reset (all effects) |
 | Left / Right arrow | Previous / next image |
 | Ctrl + S | Save visible area (JPEG 93, original resolution) |
diff --git a/dist/imajviewer_1.6.0_amd64.deb b/dist/imajviewer_1.6.1_amd64.deb
similarity index 60%
rename from dist/imajviewer_1.6.0_amd64.deb
rename to dist/imajviewer_1.6.1_amd64.deb
index ec8fc13..21cc33f 100644
Binary files a/dist/imajviewer_1.6.0_amd64.deb and b/dist/imajviewer_1.6.1_amd64.deb differ
diff --git a/lib/l10n/app_en.arb b/lib/l10n/app_en.arb
index 573cd01..955c991 100644
--- a/lib/l10n/app_en.arb
+++ b/lib/l10n/app_en.arb
@@ -6,7 +6,7 @@
   "sortByName": "By name",
   "appDescription": "Ultra-lightweight and fast image viewer. Open images and use arrows or keyboard keys to navigate.",
   "shortcuts": "Shortcuts",
-  "shortcutsList": "• Left/Right arrow — previous/next image\n• Ctrl+S — save visible area (JPEG 93)\n• Ctrl+Q — close window\n• Ctrl+Shift+Q — close all windows\n• Double click — toggle fill/fit\n• Right-drag — contrast\n• Shift+right-drag — rotate\n• Ctrl+right-drag — saturation\n• Ctrl+Shift+right-drag — brightness\n• R — flip horizontally (resets effects, press again to undo)",
+  "shortcutsList": "• Left/Right arrow — previous/next image\n• Ctrl+S — save visible area (JPEG 93)\n• Ctrl+R — flip horizontally (clears effects, press again to undo)\n• Ctrl+Q — close window\n• Ctrl+Shift+Q — close all windows\n• Double click — toggle fill/fit\n• Right-drag — contrast\n• Shift+right-drag — rotate\n• Ctrl+right-drag — saturation\n• Ctrl+Shift+right-drag — brightness",
   "print": "Print",
   "close": "Close",
   "saveCrop": "Save visible area (JPEG 93)",
diff --git a/lib/l10n/app_localizations.dart b/lib/l10n/app_localizations.dart
index 9749391..4126311 100644
--- a/lib/l10n/app_localizations.dart
+++ b/lib/l10n/app_localizations.dart
@@ -137,7 +137,7 @@ abstract class AppLocalizations {
   /// No description provided for @shortcutsList.
   ///
   /// In en, this message translates to:
-  /// **'• Left/Right arrow — previous/next image\n• Ctrl+S — save visible area (JPEG 93)\n• Ctrl+Q — close window\n• Ctrl+Shift+Q — close all windows\n• Double click — toggle fill/fit\n• Right-drag — contrast\n• Shift+right-drag — rotate\n• Ctrl+right-drag — saturation\n• Ctrl+Shift+right-drag — brightness\n• R — flip horizontally (resets effects, press again to undo)'**
+  /// **'• Left/Right arrow — previous/next image\n• Ctrl+S — save visible area (JPEG 93)\n• Ctrl+R — flip horizontally (clears effects, press again to undo)\n• Ctrl+Q — close window\n• Ctrl+Shift+Q — close all windows\n• Double click — toggle fill/fit\n• Right-drag — contrast\n• Shift+right-drag — rotate\n• Ctrl+right-drag — saturation\n• Ctrl+Shift+right-drag — brightness'**
   String get shortcutsList;
 
   /// No description provided for @print.
diff --git a/lib/l10n/app_localizations_en.dart b/lib/l10n/app_localizations_en.dart
index aba75e3..6459ab3 100644
--- a/lib/l10n/app_localizations_en.dart
+++ b/lib/l10n/app_localizations_en.dart
@@ -29,7 +29,7 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get shortcutsList =>
-      '• Left/Right arrow — previous/next image\n• Ctrl+S — save visible area (JPEG 93)\n• Ctrl+Q — close window\n• Ctrl+Shift+Q — close all windows\n• Double click — toggle fill/fit\n• Right-drag — contrast\n• Shift+right-drag — rotate\n• Ctrl+right-drag — saturation\n• Ctrl+Shift+right-drag — brightness\n• R — flip horizontally (resets effects, press again to undo)';
+      '• Left/Right arrow — previous/next image\n• Ctrl+S — save visible area (JPEG 93)\n• Ctrl+R — flip horizontally (clears effects, press again to undo)\n• Ctrl+Q — close window\n• Ctrl+Shift+Q — close all windows\n• Double click — toggle fill/fit\n• Right-drag — contrast\n• Shift+right-drag — rotate\n• Ctrl+right-drag — saturation\n• Ctrl+Shift+right-drag — brightness';
 
   @override
   String get print => 'Print';
diff --git a/lib/l10n/app_localizations_tr.dart b/lib/l10n/app_localizations_tr.dart
index ab874ad..df82f3f 100644
--- a/lib/l10n/app_localizations_tr.dart
+++ b/lib/l10n/app_localizations_tr.dart
@@ -29,7 +29,7 @@ class AppLocalizationsTr extends AppLocalizations {
 
   @override
   String get shortcutsList =>
-      '• Sol/Sağ ok — önceki/sonraki resim\n• Ctrl+S — görünen alanı kaydet (JPEG 93)\n• Ctrl+Q — pencereyi kapat\n• Ctrl+Shift+Q — tüm pencereleri kapat\n• Çift tık — doldur/sığdır geçişi\n• Sağ tık sürükle — kontrast\n• Shift+sağ tık — döndür\n• Ctrl+sağ tık — doygunluk\n• Ctrl+Shift+sağ tık — parlaklık\n• R — yatay aynala (efektleri sıfırlar, tekrar basınca geri alır)';
+      '• Sol/Sağ ok — önceki/sonraki resim\n• Ctrl+S — görünen alanı kaydet (JPEG 93)\n• Ctrl+R — yatay aynala (efektleri sıfırlar, tekrar basınca geri alır)\n• Ctrl+Q — pencereyi kapat\n• Ctrl+Shift+Q — tüm pencereleri kapat\n• Çift tık — doldur/sığdır geçişi\n• Sağ tık sürükle — kontrast\n• Shift+sağ tık — döndür\n• Ctrl+sağ tık — doygunluk\n• Ctrl+Shift+sağ tık — parlaklık';
 
   @override
   String get print => 'Yazdır';
diff --git a/lib/l10n/app_tr.arb b/lib/l10n/app_tr.arb
index 6dad7c9..5e152a2 100644
--- a/lib/l10n/app_tr.arb
+++ b/lib/l10n/app_tr.arb
@@ -6,7 +6,7 @@
   "sortByName": "İsme göre",
   "appDescription": "Ultra hafif ve hızlı resim görüntüleyici. Görselleri açın, gezinti için okları veya klavye tuşlarını kullanın.",
   "shortcuts": "Kısayollar",
-  "shortcutsList": "• Sol/Sağ ok — önceki/sonraki resim\n• Ctrl+S — görünen alanı kaydet (JPEG 93)\n• Ctrl+Q — pencereyi kapat\n• Ctrl+Shift+Q — tüm pencereleri kapat\n• Çift tık — doldur/sığdır geçişi\n• Sağ tık sürükle — kontrast\n• Shift+sağ tık — döndür\n• Ctrl+sağ tık — doygunluk\n• Ctrl+Shift+sağ tık — parlaklık\n• R — yatay aynala (efektleri sıfırlar, tekrar basınca geri alır)",
+  "shortcutsList": "• Sol/Sağ ok — önceki/sonraki resim\n• Ctrl+S — görünen alanı kaydet (JPEG 93)\n• Ctrl+R — yatay aynala (efektleri sıfırlar, tekrar basınca geri alır)\n• Ctrl+Q — pencereyi kapat\n• Ctrl+Shift+Q — tüm pencereleri kapat\n• Çift tık — doldur/sığdır geçişi\n• Sağ tık sürükle — kontrast\n• Shift+sağ tık — döndür\n• Ctrl+sağ tık — doygunluk\n• Ctrl+Shift+sağ tık — parlaklık",
   "print": "Yazdır",
   "close": "Kapat",
   "saveCrop": "Görünen alanı kaydet (JPEG 93)",
diff --git a/lib/screens/viewer_screen.dart b/lib/screens/viewer_screen.dart
index e6686d9..7406cec 100644
--- a/lib/screens/viewer_screen.dart
+++ b/lib/screens/viewer_screen.dart
@@ -190,6 +190,8 @@ class _ViewerScreenState extends State<ViewerScreen> with WindowListener {
     );
   }
 
+  void _flipHorizontal() => _canvasKey.currentState?.toggleFlipH();
+
   Future<void> _cropSave() async {
     final path = ImageManager.instance.currentImagePath;
     final state = _canvasKey.currentState;
@@ -237,6 +239,7 @@ class _ViewerScreenState extends State<ViewerScreen> with WindowListener {
   Widget build(BuildContext context) {
     return AppShortcuts(
       onCropSave: _hasImages ? _cropSave : null,
+      onFlipH: _hasImages ? _flipHorizontal : null,
       child: Scaffold(
         backgroundColor: Colors.transparent,
         body: WindowResizeZones(
diff --git a/lib/shortcuts/app_shortcuts.dart b/lib/shortcuts/app_shortcuts.dart
index eb98eca..a3fa2bc 100644
--- a/lib/shortcuts/app_shortcuts.dart
+++ b/lib/shortcuts/app_shortcuts.dart
@@ -8,8 +8,14 @@ import '../services/file_handler.dart';
 class AppShortcuts extends StatelessWidget {
   final Widget child;
   final VoidCallback? onCropSave;
+  final VoidCallback? onFlipH;
 
-  const AppShortcuts({super.key, required this.child, this.onCropSave});
+  const AppShortcuts({
+    super.key,
+    required this.child,
+    this.onCropSave,
+    this.onFlipH,
+  });
 
   @override
   Widget build(BuildContext context) {
@@ -44,6 +50,17 @@ class AppShortcuts extends StatelessWidget {
             }
           }
 
+          // Ctrl+R: yatay aynala / geri al (fiziksel R: bazi klavye haritalarinda
+          // mantiksal tus T gibi farkli cozuluyor)
+          if (ctrl &&
+              (event.logicalKey == LogicalKeyboardKey.keyR ||
+                  event.physicalKey == PhysicalKeyboardKey.keyR)) {
+            if (onFlipH != null) {
+              onFlipH!();
+              return KeyEventResult.handled;
+            }
+          }
+
           switch (event.logicalKey) {
             case LogicalKeyboardKey.arrowLeft:
               ImageManager.instance.previousImage();
diff --git a/lib/widgets/image_canvas.dart b/lib/widgets/image_canvas.dart
index 45a090c..d0411e3 100644
--- a/lib/widgets/image_canvas.dart
+++ b/lib/widgets/image_canvas.dart
@@ -166,13 +166,6 @@ class ImageCanvasState extends State<ImageCanvas> {
   bool _onHardwareKey(KeyEvent event) {
     final key = event.logicalKey;
     if (event is KeyDownEvent) {
-      if (key == LogicalKeyboardKey.keyR &&
-          !HardwareKeyboard.instance.isControlPressed &&
-          !HardwareKeyboard.instance.isShiftPressed &&
-          !HardwareKeyboard.instance.isAltPressed) {
-        _toggleFlipH();
-        return true;
-      }
       if (key == LogicalKeyboardKey.controlLeft ||
           key == LogicalKeyboardKey.controlRight) {
         _ctrlPressed = true;
@@ -224,8 +217,8 @@ class ImageCanvasState extends State<ImageCanvas> {
     _markRenderDirty();
   }
 
-  /// R: sağ çift tık gibi efektleri sıfırlar ve yatay aynalar; tekrar basınca geri alır.
-  void _toggleFlipH() {
+  /// Ctrl+R: sağ çift tık gibi efektleri sıfırlar ve yatay aynalar; tekrar basınca geri alır.
+  void toggleFlipH() {
     _flipH = !_flipH;
     _angle = 0; _contrast = 1.0; _saturation = 1.0; _brightness = 0;
     _interactionMode = 'none';
diff --git a/pubspec.yaml b/pubspec.yaml
index 65c8659..ad91850 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,7 +1,7 @@
 name: imajviewer
 description: "Ultra-lightweight image viewer for Linux and Windows."
 publish_to: 'none'
-version: 1.6.0+12
+version: 1.6.1+13
 
 msix_config:
   display_name: ImajViewer
diff --git a/test/flip_test.dart b/test/flip_test.dart
index 8519cdf..0ae6ae8 100644
--- a/test/flip_test.dart
+++ b/test/flip_test.dart
@@ -4,6 +4,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:image/image.dart' as img;
+import 'package:imajviewer/shortcuts/app_shortcuts.dart';
 import 'package:imajviewer/widgets/image_canvas.dart';
 
 /// Aynalama uygulandiginda render zincirinde negatif x olcekli bir Transform bulunur.
@@ -11,13 +12,37 @@ bool _mirrored(WidgetTester tester) => tester
     .widgetList<Transform>(find.byType(Transform))
     .any((t) => t.transform.entry(0, 0) < 0);
 
-Future<void> _pressR(WidgetTester tester) async {
+Future<void> _pressCtrlR(WidgetTester tester) async {
+  await tester.sendKeyDownEvent(LogicalKeyboardKey.controlLeft);
   await tester.sendKeyDownEvent(LogicalKeyboardKey.keyR);
+  await tester.pump();
   await tester.sendKeyUpEvent(LogicalKeyboardKey.keyR);
+  await tester.sendKeyUpEvent(LogicalKeyboardKey.controlLeft);
   await tester.pump();
   await tester.pump();
 }
 
+Future<void> _pressCtrlRWrongLayout(WidgetTester tester) async {
+  await tester.sendKeyDownEvent(LogicalKeyboardKey.controlLeft);
+  await tester.sendKeyDownEvent(LogicalKeyboardKey.keyT,
+      physicalKey: PhysicalKeyboardKey.keyR);
+  await tester.pump();
+  await tester.sendKeyUpEvent(LogicalKeyboardKey.keyT,
+      physicalKey: PhysicalKeyboardKey.keyR);
+  await tester.sendKeyUpEvent(LogicalKeyboardKey.controlLeft);
+  await tester.pump();
+  await tester.pump();
+}
+
+Widget _app(GlobalKey<ImageCanvasState> key, String path, double w, double h) {
+  return MaterialApp(
+    home: AppShortcuts(
+      onFlipH: () => key.currentState?.toggleFlipH(),
+      child: SizedBox(width: w, height: h, child: ImageCanvas(key: key, filePath: path)),
+    ),
+  );
+}
+
 void main() {
   late Directory tmp;
   late String pngPath;
@@ -30,22 +55,39 @@ void main() {
 
   tearDownAll(() => tmp.deleteSync(recursive: true));
 
-  testWidgets('R yatay aynalamayi acar, tekrar basinca kapatir', (tester) async {
-    await tester.pumpWidget(MaterialApp(
-      home: SizedBox(
-        width: 400,
-        height: 300,
-        child: ImageCanvas(filePath: pngPath),
-      ),
-    ));
+  testWidgets('Ctrl+R yatay aynalamayi acar, tekrar basinca kapatir', (tester) async {
+    final key = GlobalKey<ImageCanvasState>();
+    await tester.pumpWidget(_app(key, pngPath, 400, 300));
     await tester.pump();
 
     expect(_mirrored(tester), isFalse, reason: 'baslangicta aynalama olmamali');
 
-    await _pressR(tester);
-    expect(_mirrored(tester), isTrue, reason: 'R sonrasi aynalama acik olmali');
+    await _pressCtrlR(tester);
+    expect(_mirrored(tester), isTrue, reason: 'Ctrl+R sonrasi aynalama acik olmali');
 
-    await _pressR(tester);
-    expect(_mirrored(tester), isFalse, reason: 'ikinci R sonrasi eski haline donmeli');
+    await _pressCtrlR(tester);
+    expect(_mirrored(tester), isFalse, reason: 'ikinci Ctrl+R sonrasi eski haline donmeli');
+  });
+
+  testWidgets('Ctrl+R crop-save parametrelerine aynalamayi tasir', (tester) async {
+    final key = GlobalKey<ImageCanvasState>();
+    await tester.pumpWidget(_app(key, pngPath, 100, 50));
+    await tester.pump();
+    await _pressCtrlR(tester);
+    final vp = key.currentState!.cropViewParams(4, 2);
+    expect(vp?.flipH, isTrue, reason: 'crop-save aynalamayi almali');
+  });
+
+  testWidgets('fiziksel R tusu mantiksal T olarak gelse de Ctrl+R calisir', (tester) async {
+    final key = GlobalKey<ImageCanvasState>();
+    await tester.pumpWidget(_app(key, pngPath, 400, 300));
+    await tester.pump();
+
+    await _pressCtrlRWrongLayout(tester);
+    expect(_mirrored(tester), isTrue,
+        reason: 'klavye haritasi R tusunu T olarak cozse bile aynalama acilmali');
+
+    await _pressCtrlRWrongLayout(tester);
+    expect(_mirrored(tester), isFalse, reason: 'tekrar basinca geri donmeli');
   });
 }