diff --git a/platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/text/LargeFileNotificationProvider.java b/platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/text/LargeFileNotificationProvider.java
index 9624c96f7378..68fd1ffb4589 100644
--- a/platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/text/LargeFileNotificationProvider.java
+++ b/platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/text/LargeFileNotificationProvider.java
@@ -21,6 +21,7 @@ import com.intellij.openapi.fileEditor.FileEditor;
 import com.intellij.openapi.fileEditor.TextEditor;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.Key;
+import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.ui.EditorNotificationPanel;
 import com.intellij.ui.EditorNotifications;
@@ -40,11 +41,13 @@ public class LargeFileNotificationProvider extends EditorNotifications.Provider
 
   @Nullable
   @Override
-  public EditorNotificationPanel createNotificationPanel(@NotNull final VirtualFile file, @NotNull final FileEditor fileEditor) {
+  public EditorNotificationPanel createNotificationPanel(@NotNull VirtualFile file, @NotNull FileEditor fileEditor) {
     if (!(fileEditor instanceof LargeFileEditorProvider.LargeTextFileEditor)) return null;
-    final Editor editor = ((TextEditor)fileEditor).getEditor();
-    final Project project = editor.getProject();
-    if (project == null || editor.getUserData(HIDDEN_KEY) != null || PropertiesComponent.getInstance().isTrueValue(DISABLE_KEY)) return null;
+    Editor editor = ((TextEditor)fileEditor).getEditor();
+    Project project = editor.getProject();
+    if (project == null || editor.getUserData(HIDDEN_KEY) != null || PropertiesComponent.getInstance().isTrueValue(DISABLE_KEY)) {
+      return null;
+    }
 
     EditorNotificationPanel panel = new EditorNotificationPanel();
     panel.createActionLabel("Hide notification", () -> {
@@ -54,8 +57,9 @@ public class LargeFileNotificationProvider extends EditorNotifications.Provider
     panel.createActionLabel("Don't show again", () -> {
       PropertiesComponent.getInstance().setValue(DISABLE_KEY, "true");
       update(file, project);
-    } );
-    return panel.text("File is too large. This preview is read only.");
+    });
+    return panel.text(String.format("This file is too large for editing (%s). Read only preview mode is activated.",
+                                    StringUtil.formatFileSize(file.getLength())));
   }
 
   private static void update(@NotNull VirtualFile file, @NotNull Project project) {