diff --git a/plugins/clipboard/plugin.js b/plugins/clipboard/plugin.js
index f779c535d51..0133104a704 100644
--- a/plugins/clipboard/plugin.js
+++ b/plugins/clipboard/plugin.js
@@ -1307,6 +1307,12 @@
 				}
 			} );
 
+			// We need to call preventDefault on dragover because otherwise if
+			// we drop image it will overwrite document.
+			editable.attachListener( dropTarget, 'dragover', function( evt ) {
+				evt.data.preventDefault();
+			} );
+
 			editable.attachListener( dropTarget, 'drop', function( evt ) {
 				// Cancel native drop.
 				evt.data.preventDefault();
@@ -1807,6 +1813,7 @@
 			chromeWindowsRegExp: /<!--StartFragment-->([\s\S]*)<!--EndFragment-->/,
 
 			data: {},
+			files: [],
 
 			normalizeType: function( type ) {
 				type = type.toLowerCase();
@@ -2017,7 +2024,8 @@
 				return;
 			}
 
-			var that = this;
+			var that = this,
+				i;
 
 			function getAndSetData( type ) {
 				var data = that.getData( type );
@@ -2026,14 +2034,48 @@
 				}
 			}
 
+			// Copy data.
 			if ( CKEDITOR.env.ie ) {
 				getAndSetData( 'Text' );
 				getAndSetData( 'URL' );
 			} else if ( this.$.types ) {
-				for ( var i = 0; i < this.$.types.length; i++ ) {
+				for ( i = 0; i < this.$.types.length; i++ ) {
 					getAndSetData( this.$.types[ i ] );
 				}
 			}
+
+			// Copy files references.
+			if ( this.$ && this.$.files ) {
+				this._.files = [];
+
+				for ( i = 0; i < this.$.files.length; i++ ) {
+					this._.files.push( this.$.files[ i ] );
+				}
+			}
+		},
+
+		getFilesCount: function() {
+			if ( this._.files.length ) {
+				return this._.files.length;
+			}
+
+			if ( this.$ && this.$.files && this.$.files.length ) {
+				return this.$.files.length;
+			}
+
+			return 0;
+		},
+
+		getFile: function( i ) {
+			if ( this._.files.length ) {
+				return this._.files[ i ];
+			}
+
+			if ( this.$ && this.$.files && this.$.files.length ) {
+				return this.$.files[ i ];
+			}
+
+			return null;
 		},
 
 		/**
@@ -2045,6 +2087,11 @@
 			var typesToCheck = {},
 				type;
 
+			// If dataTransfer contains files it is not empty.
+			if ( this.getFilesCount() ) {
+				return false;
+			}
+
 			// Add custom types.
 			for ( type in this._.data ) {
 				typesToCheck[ type ] = 1;
diff --git a/tests/_benderjs/ckeditor/static/tools.js b/tests/_benderjs/ckeditor/static/tools.js
index bdcc697c0e0..e279e8e9016 100644
--- a/tests/_benderjs/ckeditor/static/tools.js
+++ b/tests/_benderjs/ckeditor/static/tools.js
@@ -777,6 +777,7 @@
 		mockNativeDataTransfer: function() {
 			return {
 				types: [],
+				files: CKEDITOR.env.ie && CKEDITOR.env.version < 10 ? undefined : [],
 				_data: [],
 				// Emulate browsers native behavior for getDeta/setData.
 				setData: function( type, data ) {
diff --git a/tests/plugins/clipboard/datatransfer.js b/tests/plugins/clipboard/datatransfer.js
index cbc23e9f618..2579e61e942 100644
--- a/tests/plugins/clipboard/datatransfer.js
+++ b/tests/plugins/clipboard/datatransfer.js
@@ -348,7 +348,58 @@ bender.test( {
 
 		assert.areSame( 'foo', dataTransfer.getData( 'cke/custom' ) );
 		assert.areSame( '', dataTransfer.getData( 'cke/undefined' ) );
+	},
+
+	'test files empty': function() {
+		var nativeData = bender.tools.mockNativeDataTransfer(),
+			dataTransfer = new CKEDITOR.plugins.clipboard.dataTransfer( nativeData );
 
+		dataTransfer.cacheData();
+
+		assert.areSame( 0, dataTransfer.getFilesCount() );
+		assert.isFalse( !!dataTransfer.getFile( 0 ) );
+	},
+
+	'test files': function() {
+		if ( CKEDITOR.env.ie && CKEDITOR.env.version < 10 ) {
+			assert.ignore();
+		}
+
+		var nativeData = bender.tools.mockNativeDataTransfer(),
+			dataTransfer = new CKEDITOR.plugins.clipboard.dataTransfer( nativeData );
+
+		nativeData.files.push( 'foo' );
+		nativeData.files.push( 'bar' );
+
+		assert.areSame( 2, dataTransfer.getFilesCount() );
+		assert.areSame( 'foo', dataTransfer.getFile( 0 ) );
+		assert.areSame( 'bar', dataTransfer.getFile( 1 ) );
+	},
+
+	'test files with cache': function() {
+		if ( CKEDITOR.env.ie && CKEDITOR.env.version < 10 ) {
+			assert.ignore();
+		}
+
+		var nativeData = bender.tools.mockNativeDataTransfer(),
+			dataTransfer = new CKEDITOR.plugins.clipboard.dataTransfer( nativeData );
+
+		nativeData.files.push( 'foo' );
+		nativeData.files.push( 'bar' );
+
+		dataTransfer.cacheData();
+
+		assert.areSame( 2, dataTransfer.getFilesCount() );
+		assert.areSame( 'foo', dataTransfer.getFile( 0 ) );
+		assert.areSame( 'bar', dataTransfer.getFile( 1 ) );
+		assert.isFalse( !!dataTransfer.getFile( 2 ) );
+
+		nativeData.files = [];
+
+		assert.areSame( 2, dataTransfer.getFilesCount() );
+		assert.areSame( 'foo', dataTransfer.getFile( 0 ) );
+		assert.areSame( 'bar', dataTransfer.getFile( 1 ) );
+		assert.isFalse( !!dataTransfer.getFile( 2 ) );
 	},
 
 	'test isEmpty 1': function() {
@@ -437,6 +488,34 @@ bender.test( {
 		assert.isFalse( dataTransfer.isEmpty() );
 	},
 
+	'test isEmpty 11': function() {
+		if ( CKEDITOR.env.ie && CKEDITOR.env.version < 10 ) {
+			assert.ignore();
+		}
+
+		var nativeData = bender.tools.mockNativeDataTransfer(),
+			dataTransfer = new CKEDITOR.plugins.clipboard.dataTransfer( nativeData );
+
+		nativeData.files.push( 'foo' );
+
+		assert.isFalse( dataTransfer.isEmpty() );
+	},
+
+	'test isEmpty 12': function() {
+		if ( CKEDITOR.env.ie && CKEDITOR.env.version < 10 ) {
+			assert.ignore();
+		}
+
+		var nativeData = bender.tools.mockNativeDataTransfer(),
+			dataTransfer = new CKEDITOR.plugins.clipboard.dataTransfer( nativeData );
+
+		nativeData.files.push( 'foo' );
+		dataTransfer.cacheData();
+		nativeData.files = [];
+
+		assert.isFalse( dataTransfer.isEmpty() );
+	},
+
 	'test initDragDataTransfer binding': function() {
 		var nativeData1 = bender.tools.mockNativeDataTransfer(),
 			nativeData2 = bender.tools.mockNativeDataTransfer(),