diff --git a/src/main/java/com/reandroid/apk/ApkJsonDecoder.java b/src/main/java/com/reandroid/apk/ApkJsonDecoder.java
index 935cdec..3a8d949 100644
--- a/src/main/java/com/reandroid/apk/ApkJsonDecoder.java
+++ b/src/main/java/com/reandroid/apk/ApkJsonDecoder.java
@@ -1,21 +1,22 @@
- /*
-  *  Copyright (C) 2022 github.com/REAndroid
-  *
-  *  Licensed under the Apache License, Version 2.0 (the "License");
-  *  you may not use this file except in compliance with the License.
-  *  You may obtain a copy of the License at
-  *
-  *      http://www.apache.org/licenses/LICENSE-2.0
-  *
-  * Unless required by applicable law or agreed to in writing, software
-  * distributed under the License is distributed on an "AS IS" BASIS,
-  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  * See the License for the specific language governing permissions and
-  * limitations under the License.
-  */
+/*
+ *  Copyright (C) 2022 github.com/REAndroid
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package com.reandroid.apk;
 
 import com.reandroid.archive.InputSource;
+import com.reandroid.archive2.block.ApkSignatureBlock;
 import com.reandroid.arsc.chunk.TableBlock;
 import com.reandroid.arsc.chunk.xml.AndroidManifestBlock;
 import com.reandroid.arsc.chunk.xml.ResXmlDocument;
@@ -53,8 +54,18 @@ public class ApkJsonDecoder {
         writeResources(dir);
         writeRootFiles(dir);
         writePathMap(dir);
+        dumpSignatures(dir);
         return new File(dir, apkModule.getModuleName());
     }
+    private void dumpSignatures(File outDir) throws IOException {
+        ApkSignatureBlock signatureBlock = apkModule.getApkSignatureBlock();
+        if(signatureBlock == null){
+            return;
+        }
+        apkModule.logMessage("Dumping signatures: " + ApkUtil.SIGNATURE_FILE_NAME);
+        File file = toSignatureFile(outDir);
+        signatureBlock.writeRaw(file);
+    }
     private void writePathMap(File dir) throws IOException {
         PathMap pathMap = new PathMap();
         pathMap.add(apkModule.getApkArchive());
@@ -189,6 +200,10 @@ public class ApkJsonDecoder {
         String name = "public.xml";
         return new File(file, name);
     }
+    private File toSignatureFile(File dir){
+        File file = new File(dir, apkModule.getModuleName());
+        return new File(file, ApkUtil.SIGNATURE_FILE_NAME);
+    }
     private File toPathMapJsonFile(File dir){
         File file = new File(dir, apkModule.getModuleName());
         return new File(file, PathMap.JSON_FILE);
diff --git a/src/main/java/com/reandroid/apk/ApkJsonEncoder.java b/src/main/java/com/reandroid/apk/ApkJsonEncoder.java
index 96a10ff..6af21b4 100644
--- a/src/main/java/com/reandroid/apk/ApkJsonEncoder.java
+++ b/src/main/java/com/reandroid/apk/ApkJsonEncoder.java
@@ -1,22 +1,23 @@
- /*
-  *  Copyright (C) 2022 github.com/REAndroid
-  *
-  *  Licensed under the Apache License, Version 2.0 (the "License");
-  *  you may not use this file except in compliance with the License.
-  *  You may obtain a copy of the License at
-  *
-  *      http://www.apache.org/licenses/LICENSE-2.0
-  *
-  * Unless required by applicable law or agreed to in writing, software
-  * distributed under the License is distributed on an "AS IS" BASIS,
-  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  * See the License for the specific language governing permissions and
-  * limitations under the License.
-  */
+/*
+ *  Copyright (C) 2022 github.com/REAndroid
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package com.reandroid.apk;
 
 import com.reandroid.archive.APKArchive;
 import com.reandroid.archive.FileInputSource;
+import com.reandroid.archive2.block.ApkSignatureBlock;
 import com.reandroid.arsc.chunk.TableBlock;
 import com.reandroid.arsc.chunk.xml.AndroidManifestBlock;
 import com.reandroid.json.JSONArray;
@@ -40,12 +41,28 @@ public class ApkJsonEncoder {
         scanResJsonDirs(moduleDir);
         scanRootDirs(moduleDir);
         ApkModule module=new ApkModule(moduleName, apkArchive);
+        module.setLoadDefaultFramework(false);
         module.setAPKLogger(apkLogger);
         loadUncompressed(module, moduleDir);
         applyResourceId(module, moduleDir);
         restorePathMap(moduleDir, module);
+        restoreSignatures(moduleDir, module);
         return module;
     }
+    private void restoreSignatures(File dir, ApkModule apkModule){
+        File file = new File(dir, ApkUtil.SIGNATURE_FILE_NAME);
+        if(!file.isFile()){
+            return;
+        }
+        logMessage("Loading signature: " + file.getName());
+        ApkSignatureBlock signatureBlock = new ApkSignatureBlock();
+        try {
+            signatureBlock.read(file);
+            apkModule.setApkSignatureBlock(signatureBlock);
+        } catch (IOException exception){
+            logError("Failed to load signatures: ", exception);
+        }
+    }
     private void restorePathMap(File dir, ApkModule apkModule){
         File file = new File(dir, PathMap.JSON_FILE);
         if(!file.isFile()){
diff --git a/src/main/java/com/reandroid/apk/ApkModuleXmlDecoder.java b/src/main/java/com/reandroid/apk/ApkModuleXmlDecoder.java
index 51af36a..3d899d4 100644
--- a/src/main/java/com/reandroid/apk/ApkModuleXmlDecoder.java
+++ b/src/main/java/com/reandroid/apk/ApkModuleXmlDecoder.java
@@ -1,4 +1,4 @@
- /*
+/*
   *  Copyright (C) 2022 github.com/REAndroid
   *
   *  Licensed under the Apache License, Version 2.0 (the "License");
@@ -19,6 +19,7 @@ import com.reandroid.apk.xmldecoder.ResXmlDocumentSerializer;
 import com.reandroid.archive.InputSource;
 import com.reandroid.apk.xmldecoder.XMLBagDecoder;
 import com.reandroid.apk.xmldecoder.XMLNamespaceValidator;
+import com.reandroid.archive2.block.ApkSignatureBlock;
 import com.reandroid.arsc.chunk.PackageBlock;
 import com.reandroid.arsc.chunk.TableBlock;
 import com.reandroid.arsc.chunk.TypeBlock;
@@ -92,6 +93,17 @@ import java.util.*;
         extractRootFiles(outDir);
 
         writePathMap(outDir);
+
+        dumpSignatures(outDir);
+    }
+    private void dumpSignatures(File outDir) throws IOException {
+        ApkSignatureBlock signatureBlock = apkModule.getApkSignatureBlock();
+        if(signatureBlock == null){
+            return;
+        }
+        logMessage("Dumping signatures: " + ApkUtil.SIGNATURE_FILE_NAME);
+        File file = new File(outDir, ApkUtil.SIGNATURE_FILE_NAME);
+        signatureBlock.writeRaw(file);
     }
     private void writePathMap(File dir) throws IOException {
         PathMap pathMap = new PathMap();
diff --git a/src/main/java/com/reandroid/apk/ApkModuleXmlEncoder.java b/src/main/java/com/reandroid/apk/ApkModuleXmlEncoder.java
index 0b0c293..0b2db12 100644
--- a/src/main/java/com/reandroid/apk/ApkModuleXmlEncoder.java
+++ b/src/main/java/com/reandroid/apk/ApkModuleXmlEncoder.java
@@ -1,77 +1,90 @@
- /*
-  *  Copyright (C) 2022 github.com/REAndroid
-  *
-  *  Licensed under the Apache License, Version 2.0 (the "License");
-  *  you may not use this file except in compliance with the License.
-  *  You may obtain a copy of the License at
-  *
-  *      http://www.apache.org/licenses/LICENSE-2.0
-  *
-  * Unless required by applicable law or agreed to in writing, software
-  * distributed under the License is distributed on an "AS IS" BASIS,
-  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  * See the License for the specific language governing permissions and
-  * limitations under the License.
-  */
+/*
+ *  Copyright (C) 2022 github.com/REAndroid
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package com.reandroid.apk;
 
- import com.reandroid.archive.APKArchive;
- import com.reandroid.archive.FileInputSource;
- import com.reandroid.apk.xmlencoder.RESEncoder;
- import com.reandroid.arsc.chunk.TableBlock;
- import com.reandroid.json.JSONArray;
- import com.reandroid.xml.XMLException;
+import com.reandroid.archive.APKArchive;
+import com.reandroid.archive.FileInputSource;
+import com.reandroid.apk.xmlencoder.RESEncoder;
+import com.reandroid.archive2.block.ApkSignatureBlock;
+import com.reandroid.arsc.chunk.TableBlock;
+import com.reandroid.json.JSONArray;
+import com.reandroid.xml.XMLException;
 
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.IOException;
- import java.util.List;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.util.List;
 
- public class ApkModuleXmlEncoder {
-     private final RESEncoder resEncoder;
-     public ApkModuleXmlEncoder(){
-         this.resEncoder = new RESEncoder();
-     }
-     public ApkModuleXmlEncoder(ApkModule module, TableBlock tableBlock){
-         this.resEncoder = new RESEncoder(module, tableBlock);
-     }
-     public void scanDirectory(File mainDirectory) throws IOException, XMLException {
-         loadUncompressedFiles(mainDirectory);
-         resEncoder.scanDirectory(mainDirectory);
-         File rootDir=new File(mainDirectory, "root");
-         scanRootDir(rootDir);
-         restorePathMap(mainDirectory);
-     }
-     private void restorePathMap(File dir) throws IOException{
-         File file = new File(dir, PathMap.JSON_FILE);
-         if(!file.isFile()){
-             return;
-         }
-         PathMap pathMap = new PathMap();
-         FileInputStream inputStream = new FileInputStream(file);
-         JSONArray jsonArray = new JSONArray(inputStream);
-         pathMap.fromJson(jsonArray);
-         pathMap.restore(getApkModule());
-     }
-     public ApkModule getApkModule(){
-         return resEncoder.getApkModule();
-     }
+public class ApkModuleXmlEncoder {
+    private final RESEncoder resEncoder;
+    public ApkModuleXmlEncoder(){
+        this.resEncoder = new RESEncoder();
+    }
+    public ApkModuleXmlEncoder(ApkModule module, TableBlock tableBlock){
+        this.resEncoder = new RESEncoder(module, tableBlock);
+    }
+    public void scanDirectory(File mainDirectory) throws IOException, XMLException {
+        loadUncompressedFiles(mainDirectory);
+        resEncoder.scanDirectory(mainDirectory);
+        File rootDir=new File(mainDirectory, "root");
+        scanRootDir(rootDir);
+        restorePathMap(mainDirectory);
+        restoreSignatures(mainDirectory);
+    }
+    private void restoreSignatures(File dir) throws IOException {
+        File file = new File(dir, ApkUtil.SIGNATURE_FILE_NAME);
+        if(!file.isFile()){
+            return;
+        }
+        ApkModule apkModule = getApkModule();
+        apkModule.logMessage("Loading signature: " + file.getName());
+        ApkSignatureBlock signatureBlock = new ApkSignatureBlock();
+        signatureBlock.read(file);
+        apkModule.setApkSignatureBlock(signatureBlock);
+    }
+    private void restorePathMap(File dir) throws IOException{
+        File file = new File(dir, PathMap.JSON_FILE);
+        if(!file.isFile()){
+            return;
+        }
+        PathMap pathMap = new PathMap();
+        FileInputStream inputStream = new FileInputStream(file);
+        JSONArray jsonArray = new JSONArray(inputStream);
+        pathMap.fromJson(jsonArray);
+        pathMap.restore(getApkModule());
+    }
+    public ApkModule getApkModule(){
+        return resEncoder.getApkModule();
+    }
 
-     private void scanRootDir(File rootDir){
-         APKArchive archive=getApkModule().getApkArchive();
-         List<File> rootFileList=ApkUtil.recursiveFiles(rootDir);
-         for(File file:rootFileList){
-             String path=ApkUtil.toArchivePath(rootDir, file);
-             FileInputSource inputSource=new FileInputSource(file, path);
-             archive.add(inputSource);
-         }
-     }
-     private void loadUncompressedFiles(File mainDirectory) throws IOException, XMLException {
-         File file=new File(mainDirectory, UncompressedFiles.JSON_FILE);
-         UncompressedFiles uncompressedFiles = getApkModule().getUncompressedFiles();
-         uncompressedFiles.fromJson(file);
-     }
-     public void setApkLogger(APKLogger apkLogger) {
-         this.resEncoder.setAPKLogger(apkLogger);
-     }
- }
+    private void scanRootDir(File rootDir){
+        APKArchive archive=getApkModule().getApkArchive();
+        List<File> rootFileList=ApkUtil.recursiveFiles(rootDir);
+        for(File file:rootFileList){
+            String path=ApkUtil.toArchivePath(rootDir, file);
+            FileInputSource inputSource=new FileInputSource(file, path);
+            archive.add(inputSource);
+        }
+    }
+    private void loadUncompressedFiles(File mainDirectory) throws IOException, XMLException {
+        File file=new File(mainDirectory, UncompressedFiles.JSON_FILE);
+        UncompressedFiles uncompressedFiles = getApkModule().getUncompressedFiles();
+        uncompressedFiles.fromJson(file);
+    }
+    public void setApkLogger(APKLogger apkLogger) {
+        this.resEncoder.setAPKLogger(apkLogger);
+    }
+}
diff --git a/src/main/java/com/reandroid/apk/ApkUtil.java b/src/main/java/com/reandroid/apk/ApkUtil.java
index fcb49f2..3ba8fa0 100644
--- a/src/main/java/com/reandroid/apk/ApkUtil.java
+++ b/src/main/java/com/reandroid/apk/ApkUtil.java
@@ -1,4 +1,4 @@
- /*
+/*
   *  Copyright (C) 2022 github.com/REAndroid
   *
   *  Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,6 +16,7 @@
 package com.reandroid.apk;
 
 import com.reandroid.archive.InputSource;
+import com.reandroid.archive2.block.ApkSignatureBlock;
 
 import java.io.File;
 import java.util.*;
@@ -192,5 +193,7 @@ public class ApkUtil {
     public static final String TAG_STRING_ARRAY = "string-array";
     public static final String TAG_INTEGER_ARRAY = "integer-array";
 
+    public static final String SIGNATURE_FILE_NAME = "signatures" + ApkSignatureBlock.FILE_EXT;
+
     private static final int MAX_FILE_NAME_LENGTH = 50;
 }
diff --git a/src/main/java/com/reandroid/archive2/block/ApkSignatureBlock.java b/src/main/java/com/reandroid/archive2/block/ApkSignatureBlock.java
index e9d41d0..4220113 100644
--- a/src/main/java/com/reandroid/archive2/block/ApkSignatureBlock.java
+++ b/src/main/java/com/reandroid/archive2/block/ApkSignatureBlock.java
@@ -157,5 +157,5 @@ public class ApkSignatureBlock extends LengthPrefixedList<SignatureInfo>
         return 0;
     }
 
-    public static final String FILE_EXT = ".signature.block.bin";
+    public static final String FILE_EXT = ".sig";
 }