diff --git a/lib/api/gallery.dart b/lib/api/gallery.dart
index 07c9d97..4fbbb91 100644
--- a/lib/api/gallery.dart
+++ b/lib/api/gallery.dart
@@ -126,7 +126,7 @@ class Tag {
 
 @JsonSerializable()
 class ExtendedPMeta {
-  const ExtendedPMeta({
+  ExtendedPMeta({
     required this.gid,
     required this.index,
     required this.token,
@@ -143,9 +143,9 @@ class ExtendedPMeta {
   final int width;
   final int height;
   @JsonKey(name: 'is_nsfw')
-  final bool isNsfw;
+  bool isNsfw;
   @JsonKey(name: 'is_ad')
-  final bool isAd;
+  bool isAd;
 
   factory ExtendedPMeta.fromJson(Map<String, dynamic> json) =>
       _$ExtendedPMetaFromJson(json);
diff --git a/lib/components/gallery_info.dart b/lib/components/gallery_info.dart
index ba17042..a424431 100644
--- a/lib/components/gallery_info.dart
+++ b/lib/components/gallery_info.dart
@@ -24,10 +24,29 @@ class _GalleryInfo extends State<GalleryInfo> with ThemeModeWidget {
     setState(() {});
   }
 
+  void _onAdChanged(dynamic args) {
+    final arguments = args as (String, bool)?;
+    if (arguments == null) return;
+    final token = arguments.$1;
+    final isAd = arguments.$2;
+    var changed = false;
+    for (var e in widget.gData.pages) {
+      if (e.token == token) {
+        e.isAd = isAd;
+        changed = true;
+        break;
+      }
+    }
+    if (changed) {
+      setState(() {});
+    }
+  }
+
   @override
   void initState() {
     listener.on("showNsfwChanged", stateChanged);
     listener.on("displayAdChanged", stateChanged);
+    listener.on("adChanged", _onAdChanged);
     super.initState();
   }
 
@@ -100,6 +119,7 @@ class _GalleryInfo extends State<GalleryInfo> with ThemeModeWidget {
     controller.dispose();
     listener.removeEventListener("showNsfwChanged", stateChanged);
     listener.removeEventListener("displayAdChanged", stateChanged);
+    listener.removeEventListener("adChanged", _onAdChanged);
     super.dispose();
   }
 }
diff --git a/lib/components/image.dart b/lib/components/image.dart
index 80387bb..43bc8d4 100644
--- a/lib/components/image.dart
+++ b/lib/components/image.dart
@@ -10,13 +10,25 @@ final _log = Logger("ImageWithContextMenu");
 
 class ImageWithContextMenu extends StatelessWidget {
   const ImageWithContextMenu(this.data,
-      {Key? key, this.uri, this.dir, this.fileName, this.fmt = ImageFmt.jpg})
+      {Key? key,
+      this.uri,
+      this.dir,
+      this.fileName,
+      this.fmt = ImageFmt.jpg,
+      this.isNsfw,
+      this.changeNsfw,
+      this.isAd,
+      this.changeAd})
       : super(key: key);
   final Uint8List data;
   final String? uri;
   final ImageFmt fmt;
   final String? fileName;
   final String? dir;
+  final bool Function()? isNsfw;
+  final Function(bool isNsfw)? changeNsfw;
+  final bool Function()? isAd;
+  final Function(bool isAd)? changeAd;
   @override
   Widget build(BuildContext context) {
     return ContextMenuWidget(
@@ -53,6 +65,26 @@ class ImageWithContextMenu extends StatelessWidget {
                   }
                 }));
           }
+          if (isNsfw != null && changeNsfw != null) {
+            final nsfw = isNsfw!();
+            list.add(MenuAction(
+                title: nsfw
+                    ? AppLocalizations.of(context)!.markAsSfw
+                    : AppLocalizations.of(context)!.markAsNsfw,
+                callback: () {
+                  changeNsfw!(!isNsfw!());
+                }));
+          }
+          if (isAd != null && changeAd != null) {
+            final ad = isAd!();
+            list.add(MenuAction(
+                title: ad
+                    ? AppLocalizations.of(context)!.markAsNonAd
+                    : AppLocalizations.of(context)!.markAsAd,
+                callback: () {
+                  changeAd!(!isAd!());
+                }));
+          }
           return Menu(children: list);
         },
         child: Image.memory(data));
diff --git a/lib/components/thumbnail.dart b/lib/components/thumbnail.dart
index ec9f595..063df82 100644
--- a/lib/components/thumbnail.dart
+++ b/lib/components/thumbnail.dart
@@ -64,6 +64,10 @@ enum _ThumbnailMenu {
   copyImage,
   copyImgUrl,
   saveAs,
+  markAsNsfw,
+  markAsSfw,
+  markAsAd,
+  markAsNonAd,
 }
 
 class _Thumbnail extends State<Thumbnail> {
@@ -74,11 +78,52 @@ class _Thumbnail extends State<Thumbnail> {
   bool _showNsfw = false;
   String? _uri;
   CancelToken? _cancel;
+  CancelToken? _markAsNsfwCancel;
+  CancelToken? _markAsAdCancel;
   String? _fileName;
   String _dir = "";
   Color? _iconColor;
   double? _iconSize;
   bool _disposed = false;
+  void _onNsfwChanged(dynamic args) {
+    final arguments = args as (String, bool)?;
+    if (arguments == null) return;
+    final token = arguments.$1;
+    final isNsfw = arguments.$2;
+    if (token != widget._pMeta.token) return;
+    widget._pMeta.isNsfw = isNsfw;
+    setState(() {});
+  }
+
+  Future<void> _markAsNsfw(bool isNsfw) async {
+    try {
+      _markAsNsfwCancel = CancelToken();
+      final token = widget._pMeta.token;
+      (await api.updateFileMeta(token,
+              isNsfw: isNsfw, cancel: _markAsNsfwCancel))
+          .unwrap();
+      listener.tryEmit("nsfwChanged", (token, isNsfw));
+    } catch (e) {
+      if (!_markAsNsfwCancel!.isCancelled) {
+        _log.warning("Failed to mark as nsfw:", e);
+      }
+    }
+  }
+
+  Future<void> _markAsAd(bool isAd) async {
+    try {
+      _markAsAdCancel = CancelToken();
+      final token = widget._pMeta.token;
+      (await api.updateFileMeta(token, isAd: isAd, cancel: _markAsAdCancel))
+          .unwrap();
+      listener.tryEmit("adChanged", (token, isAd));
+    } catch (e) {
+      if (!_markAsAdCancel!.isCancelled) {
+        _log.warning("Failed to mark as ad:", e);
+      }
+    }
+  }
+
   Future<void> _fetchData() async {
     try {
       _cancel = CancelToken();
@@ -133,6 +178,7 @@ class _Thumbnail extends State<Thumbnail> {
     _uri = null;
     _fileName = "${basenameWithoutExtension(widget._pMeta.name)}_thumb";
     _dir = isAndroid && widget.gid != null ? widget.gid!.toString() : "";
+    listener.on("nsfwChanged", _onNsfwChanged);
     super.initState();
   }
 
@@ -174,6 +220,9 @@ class _Thumbnail extends State<Thumbnail> {
   void dispose() {
     _disposed = true;
     _cancel?.cancel();
+    _markAsNsfwCancel?.cancel();
+    _markAsAdCancel?.cancel();
+    listener.removeEventListener("nsfwChanged", _onNsfwChanged);
     super.dispose();
   }
 
@@ -201,6 +250,18 @@ class _Thumbnail extends State<Thumbnail> {
           _log.warning("Failed to save image:", err);
         }
         break;
+      case _ThumbnailMenu.markAsNsfw:
+        await _markAsNsfw(true);
+        break;
+      case _ThumbnailMenu.markAsSfw:
+        await _markAsNsfw(false);
+        break;
+      case _ThumbnailMenu.markAsAd:
+        await _markAsAd(true);
+        break;
+      case _ThumbnailMenu.markAsNonAd:
+        await _markAsAd(false);
+        break;
     }
   }
 
@@ -208,6 +269,7 @@ class _Thumbnail extends State<Thumbnail> {
   Widget build(BuildContext context) {
     final isLoading = _data == null && _error == null;
     final isNsfw = widget._pMeta.isNsfw;
+    final isAd = widget._pMeta.isAd;
     if (isLoading && !_isLoading) _fetchData();
     _iconSize ??= Theme.of(context).iconTheme.size;
     final iconSize = MediaQuery.of(context).size.width < 400
@@ -234,12 +296,37 @@ class _Thumbnail extends State<Thumbnail> {
                 PopupMenuItem(
                     value: _ThumbnailMenu.saveAs,
                     child: Text(AppLocalizations.of(context)!.saveAs)),
+                const PopupMenuDivider(),
+                PopupMenuItem(
+                    value: isNsfw
+                        ? _ThumbnailMenu.markAsSfw
+                        : _ThumbnailMenu.markAsNsfw,
+                    child: Text(isNsfw
+                        ? AppLocalizations.of(context)!.markAsSfw
+                        : AppLocalizations.of(context)!.markAsNsfw)),
+                PopupMenuItem(
+                    value: isAd
+                        ? _ThumbnailMenu.markAsNonAd
+                        : _ThumbnailMenu.markAsAd,
+                    child: Text(isAd
+                        ? AppLocalizations.of(context)!.markAsNonAd
+                        : AppLocalizations.of(context)!.markAsAd)),
               ];
               return list;
             }));
     final timg = _data != null
         ? ImageWithContextMenu(_data!,
-            uri: _uri, fileName: _fileName, dir: _dir)
+            uri: _uri,
+            fileName: _fileName,
+            dir: _dir,
+            isNsfw: () => widget._pMeta.isNsfw,
+            changeNsfw: (isNsfw) {
+              _markAsNsfw(isNsfw);
+            },
+            isAd: () => widget._pMeta.isAd,
+            changeAd: (isAd) {
+              _markAsAd(isAd);
+            })
         : null;
     final img = widget.gid != null && widget.index != null && _data != null
         ? GestureDetector(
diff --git a/lib/components/thumbnail_gridview.dart b/lib/components/thumbnail_gridview.dart
index 6a2d53d..0893f0f 100644
--- a/lib/components/thumbnail_gridview.dart
+++ b/lib/components/thumbnail_gridview.dart
@@ -25,9 +25,11 @@ class ThumbnailGridView extends StatelessWidget {
           final page = npages[index]!;
           final fileId =
               files != null ? files!.files[page.token]!.first.id : null;
+          final key = Key("thumbnail$gid-${page.index}");
           return Container(
               padding: const EdgeInsets.all(4),
               child: Thumbnail(page,
+                  key: key,
                   fileId: fileId,
                   gid: gid,
                   index: index + 1,
diff --git a/lib/gallery.dart b/lib/gallery.dart
index 7f310a4..9e98e7a 100644
--- a/lib/gallery.dart
+++ b/lib/gallery.dart
@@ -52,12 +52,12 @@ class _GalleryPage extends State<GalleryPage>
       (await api.updateGalleryFileMeta(_gid,
               isNsfw: isNsfw, cancel: _markAsNsfwCancel))
           .unwrap();
-      if (!_cancel!.isCancelled) {
+      if (!_markAsNsfwCancel!.isCancelled) {
         _fetchData();
       }
     } catch (e) {
-      if (!_cancel!.isCancelled) {
-        _log.severe("Failed to mark gallery $_gid:", e);
+      if (!_markAsNsfwCancel!.isCancelled) {
+        _log.warning("Failed to mark gallery $_gid:", e);
       }
     }
   }
diff --git a/lib/globals.dart b/lib/globals.dart
index e03d6bf..3cd5124 100644
--- a/lib/globals.dart
+++ b/lib/globals.dart
@@ -128,14 +128,14 @@ final Path platformPath = Path();
 final TagsInfo tags = TagsInfo();
 final GlobalKey<ScaffoldMessengerState> rootScaffoldMessengerKey =
     GlobalKey<ScaffoldMessengerState>();
-final EventListener listener = EventListener();
+final EventListener listener = EventListener()..maxListeners = 0;
 
 enum MoreVertSettings {
   setServerUrl,
   createRootUser,
   settings,
   markAsNsfw,
-  markAsNonNsfw,
+  markAsSfw,
 }
 
 void onMoreVertSettingsSelected(BuildContext context, MoreVertSettings value) {
@@ -152,7 +152,7 @@ void onMoreVertSettingsSelected(BuildContext context, MoreVertSettings value) {
     case MoreVertSettings.markAsNsfw:
       GalleryPage.maybeOf(context)?.markGalleryAsNsfw(true);
       break;
-    case MoreVertSettings.markAsNonNsfw:
+    case MoreVertSettings.markAsSfw:
       GalleryPage.maybeOf(context)?.markGalleryAsNsfw(false);
       break;
     default:
@@ -225,10 +225,10 @@ List<PopupMenuEntry<MoreVertSettings>> buildMoreVertSettings(
     if (isAllNsfw != null) {
       list.add(PopupMenuItem(
         value: isAllNsfw
-            ? MoreVertSettings.markAsNonNsfw
+            ? MoreVertSettings.markAsSfw
             : MoreVertSettings.markAsNsfw,
         child: Text(isAllNsfw
-            ? AppLocalizations.of(context)!.markAsNonNsfw
+            ? AppLocalizations.of(context)!.markAsSfw
             : AppLocalizations.of(context)!.markAsNsfw),
       ));
     }
diff --git a/lib/l10n/app_en.arb b/lib/l10n/app_en.arb
index d25800e..d126b63 100644
--- a/lib/l10n/app_en.arb
+++ b/lib/l10n/app_en.arb
@@ -89,5 +89,7 @@
     "preventScreenCapture": "Prevent screen capture",
     "seeMoreInfo": "See more information",
     "markAsNsfw": "Mark as NSFW",
-    "markAsNonNsfw": "Mark as non-NSFW"
+    "markAsSfw": "Mark as SFW",
+    "markAsAd": "Mark as Ad",
+    "markAsNonAd": "Mark as non-Ad"
 }
diff --git a/lib/l10n/app_zh.arb b/lib/l10n/app_zh.arb
index 461d0bf..e65416e 100644
--- a/lib/l10n/app_zh.arb
+++ b/lib/l10n/app_zh.arb
@@ -89,5 +89,7 @@
     "preventScreenCapture": "防止截屏",
     "seeMoreInfo": "显示更多信息",
     "markAsNsfw": "标记为NSFW",
-    "markAsNonNsfw": "标记为非NSFW"
+    "markAsSfw": "标记为SFW",
+    "markAsAd": "标记为广告",
+    "markAsNonAd": "标记为非广告"
 }