diff --git a/processor/src/main/java/one/nem/lacerta/processor/DocumentProcessor.java b/processor/src/main/java/one/nem/lacerta/processor/DocumentProcessor.java
index abca8a84..d5584c24 100644
--- a/processor/src/main/java/one/nem/lacerta/processor/DocumentProcessor.java
+++ b/processor/src/main/java/one/nem/lacerta/processor/DocumentProcessor.java
@@ -7,9 +7,9 @@ public interface DocumentProcessor {
     // ページ操作
     void addNewPageToLast(Bitmap bitmap) throws Exception;
     void addNewPagesToLast(Bitmap[] bitmaps) throws Exception;
-    void addNewPageAfterIndex(Bitmap bitmap, int index);
-    void addNewPageBeforeIndex(Bitmap bitmap, int index);
-    void removePageAtIndex(int index);
+    void addNewPageAfterIndex(Bitmap bitmap, int index) throws Exception;
+    void addNewPageBeforeIndex(Bitmap bitmap, int index) throws Exception;
+    void removePageAtIndex(int index) throws Exception;
 
     // 更新
     void updatePageAtIndex(Bitmap bitmap, int index);
diff --git a/processor/src/main/java/one/nem/lacerta/processor/impl/DocumentProcessorImpl.java b/processor/src/main/java/one/nem/lacerta/processor/impl/DocumentProcessorImpl.java
index ad31fc6c..1eada540 100644
--- a/processor/src/main/java/one/nem/lacerta/processor/impl/DocumentProcessorImpl.java
+++ b/processor/src/main/java/one/nem/lacerta/processor/impl/DocumentProcessorImpl.java
@@ -118,14 +118,45 @@ public class DocumentProcessorImpl implements DocumentProcessor{
         } // TODO-rca: 効率悪いので改善する
     }
 
-    @Override
-    public void addNewPageAfterIndex(Bitmap bitmap, int index) {
-
+    // Internal
+    // Indexを振り直す
+    private ArrayList<XmlMetaPageModel> reIndexPages(ArrayList<XmlMetaPageModel> pages) {
+        logger.debug("reIndexPages", "called"); // TODO-rca: 効率化
+        ArrayList<XmlMetaPageModel> newPages = new ArrayList<>();
+        for (int i = 0; i < pages.size(); i++) {
+            XmlMetaPageModel xmlMetaPageModel = pages.get(i);
+            xmlMetaPageModel.setIndex(i + 1);
+            newPages.add(xmlMetaPageModel);
+        }
+        return newPages;
     }
 
     @Override
-    public void addNewPageBeforeIndex(Bitmap bitmap, int index) {
+    public void addNewPageAfterIndex(Bitmap bitmap, int index) throws Exception {
+        logger.debug("addNewPageAfterIndex", "called");
+        String filename = UUID.randomUUID().toString() + ".png"; // TODO-rca: 拡張子を動的にする
 
+        this.fileManager.getNewInstance().createDirectoryIfNotExist(DEFAULT_SAVE_DIR).resolve(DEFAULT_SAVE_DIR).saveBitmap(bitmap, filename);
+
+        XmlMetaPageModel xmlMetaPageModel = new XmlMetaPageModel();
+        xmlMetaPageModel.setFilename(filename);
+        xmlMetaPageModel.setIndex(index + 1);
+        xmlMetaModel.getPages().add(index, xmlMetaPageModel);
+        xmlMetaModel.setPages(reIndexPages(xmlMetaModel.getPages()));
+    }
+
+    @Override
+    public void addNewPageBeforeIndex(Bitmap bitmap, int index) throws Exception {
+        logger.debug("addNewPageBeforeIndex", "called");
+        String filename = UUID.randomUUID().toString() + ".png"; // TODO-rca: 拡張子を動的にする
+
+        this.fileManager.getNewInstance().createDirectoryIfNotExist(DEFAULT_SAVE_DIR).resolve(DEFAULT_SAVE_DIR).saveBitmap(bitmap, filename);
+
+        XmlMetaPageModel xmlMetaPageModel = new XmlMetaPageModel();
+        xmlMetaPageModel.setFilename(filename);
+        xmlMetaPageModel.setIndex(index);
+        xmlMetaModel.getPages().add(index - 1, xmlMetaPageModel);
+        xmlMetaModel.setPages(reIndexPages(xmlMetaModel.getPages()));
     }
 
     @Override