diff --git a/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerBodyFragment.java b/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerBodyFragment.java
index 334a7e97..f52576d4 100644
--- a/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerBodyFragment.java
+++ b/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerBodyFragment.java
@@ -4,10 +4,8 @@ import android.content.Intent;
 import android.os.Bundle;
 
 import androidx.fragment.app.Fragment;
-import androidx.lifecycle.ViewModelProvider;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
-import androidx.viewpager2.widget.ViewPager2;
 
 import android.view.LayoutInflater;
 import android.view.View;
@@ -51,12 +49,6 @@ public class ViewerBodyFragment extends Fragment {
     private String documentName;
     private String revisionId;
 
-    private SharedViewModel sharedViewModel;
-
-    private RecyclerView recyclerView;
-
-    private int maxPage = 0;
-
     public ViewerBodyFragment() {
         // Required empty public constructor
     }
@@ -102,33 +94,9 @@ public class ViewerBodyFragment extends Fragment {
         super.onViewCreated(view, savedInstanceState);
         logger.debug("ViewerBodyFragment", "ViewerBodyFragment.onViewCreated");
 
-        this.recyclerView = view.findViewById(R.id.recycler_view);
+        RecyclerView recyclerView = view.findViewById(R.id.recycler_view);
         recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
 
-        sharedViewModel = new ViewModelProvider(requireActivity()).get(SharedViewModel.class);
-
-        ViewPager2 viewPager2 = getActivity().findViewById(R.id.view_pager);
-        viewPager2.registerOnPageChangeCallback(new ViewPager2.OnPageChangeCallback() {
-            @Override
-            public void onPageSelected(int position) {
-                super.onPageSelected(position);
-                sharedViewModel.setCurrentFragmentPosition(position);
-
-                if (maxPage > 0 && position >= maxPage) {
-                    // out of range
-                } else {
-                    try {
-                        recyclerView.scrollToPosition(position);
-                    } catch (Exception e) {
-                        logger.error("ViewerBodyFragment", "recyclerView.scrollToPosition");
-                        logger.error("ViewerBodyFragment", e.getMessage());
-                        logger.e_code("8beec84b-1f7d-4e1e-9364-9fcf00f3509a");
-
-                    }
-                }
-            }
-        });
-
         ViewerBodyAdapter viewerBodyAdapter = new ViewerBodyAdapter(new ItemClickListener() {
             @Override
             public void onItemClick(String fileName) {
@@ -161,19 +129,9 @@ public class ViewerBodyFragment extends Fragment {
         loadDocument(viewerBodyAdapter, documentId, revisionId);
     }
 
-    @Override
-    public void onResume() {
-        super.onResume();
-        logger.debug("ViewerBodyFragment", "ViewerBodyFragment.onResume");
-
-        this.sharedViewModel = new ViewModelProvider(requireActivity()).get(SharedViewModel.class);
-        this.recyclerView.scrollToPosition(sharedViewModel.getCurrentFragmentPosition());
-    }
-
     private void loadDocument(ViewerBodyAdapter adapter, String documentId, String revisionId) {
         if (revisionId == null) { // load latest revision
             document.getDocument(documentId).thenAccept(document -> {
-                this.maxPage = document.getPages().size();
                 getActivity().runOnUiThread(() -> {
                     adapter.setPages(document.getPages());
                     adapter.notifyDataSetChanged();
diff --git a/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerContainerFragment.java b/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerContainerFragment.java
index 3bfe11ab..f5fd50b0 100644
--- a/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerContainerFragment.java
+++ b/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerContainerFragment.java
@@ -224,18 +224,6 @@ public class ViewerContainerFragment extends Fragment {
 
             tab.setCustomView(customView);
         }).attach();
-
-        // Sync position between pages
-        viewPager.registerOnPageChangeCallback(new ViewPager2.OnPageChangeCallback() {
-            @Override
-            public void onPageSelected(int position) {
-                logger.debug("ViewerContainerFragment", "onPageSelected: " + position);
-                super.onPageSelected(position);
-                if (hasCombined) {
-                    toolbar.setTitle(viewerViewPagerAdapter.getFragmentTitle(position));
-                }
-            }
-        });
     }
 
     private void renameCombinedDocument(String parentId, String childId, String current, int position) { // TODO-rca: 無理やりpositionを渡してるのでなんとかする