diff --git a/source/src/main/java/one/nem/lacerta/source/file/impl/FileManagerImpl.java b/source/src/main/java/one/nem/lacerta/source/file/impl/FileManagerImpl.java
index 03f9332b..6077bf4e 100644
--- a/source/src/main/java/one/nem/lacerta/source/file/impl/FileManagerImpl.java
+++ b/source/src/main/java/one/nem/lacerta/source/file/impl/FileManagerImpl.java
@@ -304,7 +304,16 @@ public class FileManagerImpl implements FileManager {
     private void saveBitmapInternal(Bitmap bitmap, Path path) throws IOException {
         try {
             logger.debug("saveBitmapInternal", "path: " + path);
-            bitmap.compress(Bitmap.CompressFormat.PNG, Store.Scan.PNG_QUALITY, Files.newOutputStream(path));
+            // Bitmapの長辺を1024pxにする
+            int width = bitmap.getWidth();
+            int height = bitmap.getHeight();
+            float scale = 1.0f;
+            if (width > height) {
+                scale = Store.Scan.MAX_RESOLUTION_LONG / width;
+            } else {
+                scale = Store.Scan.MAX_RESOLUTION_LONG / height;
+            }
+            bitmap.compress(new Store.Scan().COMPRESS_FORMAT, Store.Scan.QUALITY, Files.newOutputStream(path));
         } catch (Exception e) {
             logger.error("saveBitmapInternal", e.getMessage());
             throw new IOException("Failed to save bitmap");
diff --git a/utils/src/main/java/one/nem/lacerta/utils/FeatureSwitch.java b/utils/src/main/java/one/nem/lacerta/utils/FeatureSwitch.java
index 718c1aa8..91aab3eb 100644
--- a/utils/src/main/java/one/nem/lacerta/utils/FeatureSwitch.java
+++ b/utils/src/main/java/one/nem/lacerta/utils/FeatureSwitch.java
@@ -8,7 +8,7 @@ public class FeatureSwitch {
 
     public static class FeatureMaster {
         public static boolean enableSearch = false;
-        public static boolean enableDebugMenu = false;
+        public static boolean enableDebugMenu = true;
     }
 
     public static class Vcs {
diff --git a/utils/src/main/java/one/nem/lacerta/utils/Store.java b/utils/src/main/java/one/nem/lacerta/utils/Store.java
index 78bc2511..e2695ee1 100644
--- a/utils/src/main/java/one/nem/lacerta/utils/Store.java
+++ b/utils/src/main/java/one/nem/lacerta/utils/Store.java
@@ -1,7 +1,11 @@
 package one.nem.lacerta.utils;
 
+import android.graphics.Bitmap;
+
 public class Store {
-    public class Scan {
-        public static final int PNG_QUALITY = 60;
+    public static class Scan {
+        public Bitmap.CompressFormat COMPRESS_FORMAT = Bitmap.CompressFormat.JPEG;
+        public static final int QUALITY = 60;
+        public static final float MAX_RESOLUTION_LONG = 2048;
     }
 }