diff --git a/wallpapers/image/imagepackage/contents/ui/main.qml b/wallpapers/image/imagepackage/contents/ui/main.qml
index aa8b3ec21..a23a86999 100644
--- a/wallpapers/image/imagepackage/contents/ui/main.qml
+++ b/wallpapers/image/imagepackage/contents/ui/main.qml
@@ -89,6 +89,7 @@ QQC2.StackView {
         }
         targetSize: root.sourceSize
 
+        onActualSizeChanged: Qt.callLater(loadImage);
         onColorSchemeChanged: loadImageImmediately();
     }
 
diff --git a/wallpapers/image/plugin/utils/mediaproxy.cpp b/wallpapers/image/plugin/utils/mediaproxy.cpp
index 27c2ce65d..6f4cb8661 100644
--- a/wallpapers/image/plugin/utils/mediaproxy.cpp
+++ b/wallpapers/image/plugin/utils/mediaproxy.cpp
@@ -91,8 +91,13 @@ void MediaProxy::setTargetSize(const QSize &size)
     Q_EMIT targetSizeChanged(size);
 
     if (m_providerType == Provider::Type::Package) {
+        determineBackgroundType(); // In case file format changes after size changes
         updateModelImage();
     }
+    if (m_providerType == Provider::Type::Image || m_backgroundType == BackgroundType::Type::AnimatedImage) {
+        // When KPackage contains animated wallpapers, image provider is not used.
+        Q_EMIT actualSizeChanged();
+    }
 }
 
 Provider::Type MediaProxy::providerType() const
diff --git a/wallpapers/image/plugin/utils/mediaproxy.h b/wallpapers/image/plugin/utils/mediaproxy.h
index b76c33eca..e21c7dd1a 100644
--- a/wallpapers/image/plugin/utils/mediaproxy.h
+++ b/wallpapers/image/plugin/utils/mediaproxy.h
@@ -77,6 +77,13 @@ Q_SIGNALS:
 
     void targetSizeChanged(const QSize &size);
 
+    /**
+     * Emitted when the target size changes while the provider type is single image
+     * or the current wallpaper is animated.
+     * The frontend is required to force update the wallpaper.
+     */
+    void actualSizeChanged();
+
     /**
      * Emitted when system color scheme changes. The frontend is required to
      * reload the wallpaper even if the image path is not changed.