diff --git a/pdf_unlock/install.reg b/pdf_unlock/install.reg
new file mode 100644
index 0000000..be4408c
--- /dev/null
+++ b/pdf_unlock/install.reg
@@ -0,0 +1,22 @@
+Windows Registry Editor Version 5.00
+
+[HKEY_CLASSES_ROOT\SystemFileAssociations\.pdf\shell\RemovePermissions]
+@="移除权限"
+"MultiSelectModel"="Player"
+
+[HKEY_CLASSES_ROOT\SystemFileAssociations\.pdf\shell\RemovePermissions\command]
+@="\"C:\\Program Files\\pdfUnlock\\main.exe\" \"%1\""
+
+REM 添加文件夹右键菜单
+[HKEY_CLASSES_ROOT\Directory\shell\RemovePermissions]
+@="移除PDF权限"
+
+[HKEY_CLASSES_ROOT\Directory\shell\RemovePermissions\command]
+@="\"C:\\Program Files\\pdfUnlock\\main.exe\" \"%1\""
+
+REM 添加到文件夹背景右键菜单
+[HKEY_CLASSES_ROOT\Directory\Background\shell\RemovePermissions]
+@="移除PDF权限"
+
+[HKEY_CLASSES_ROOT\Directory\Background\shell\RemovePermissions\command]
+@="\"C:\\Program Files\\pdfUnlock\\main.exe\" \"%V\""
\ No newline at end of file
diff --git a/pdf_unlock/main.py b/pdf_unlock/main.py
new file mode 100644
index 0000000..14cdf4e
--- /dev/null
+++ b/pdf_unlock/main.py
@@ -0,0 +1,117 @@
+import PyPDF2  # PyMuPDF
+import sys
+from pathlib import Path
+
+def copy_pdf_pages(input_path: str, output_path: str) -> bool:
+    """
+    绉婚櫎PDF鏂囦欢鐨勬墍鏈夐檺鍒�
+    
+    Args:
+        input_path: 杈撳叆PDF鏂囦欢璺緞
+        output_path: 杈撳嚭PDF鏂囦欢璺緞
+        password: PDF瀵嗙爜锛堝鏋滄湁锛�
+        
+    Returns:
+        鏄惁鎴愬姛绉婚櫎闄愬埗
+    """
+    try:
+        with open(input_path, 'rb') as input_file:
+            reader = PyPDF2.PdfReader(input_file)
+            
+            writer = PyPDF2.PdfWriter()
+            
+            # 澶嶅埗鎵�鏈夐〉闈�
+            for page in reader.pages:
+                writer.add_page(page)
+            
+            # 鍐欏叆鏂版枃浠讹紙涓嶈缃换浣曞姞瀵嗘垨闄愬埗锛�
+            with open(output_path, 'wb') as output_file:
+                writer.write(output_file)
+            
+            return True
+            
+    except Exception as e:
+        print(f"绉婚櫎PDF闄愬埗鏃跺彂鐢熼敊璇�: {e}")
+        return False
+
+# def copy_pdf_pages(input_file, output_file):
+#     """
+#     璇诲彇PDF鏂囦欢骞堕�愰〉澶嶅埗鍒版柊鐨凱DF鏂囦欢
+    
+#     Args:
+#         input_file (str): 杈撳叆PDF鏂囦欢璺緞
+#         output_file (str): 杈撳嚭PDF鏂囦欢璺緞
+#     """
+#     try:
+#         # 妫�鏌ヨ緭鍏ユ枃浠舵槸鍚﹀瓨鍦�
+#         if not os.path.exists(input_file):
+#             print(f"閿欒锛氳緭鍏ユ枃浠� '{input_file}' 涓嶅瓨鍦�")
+#             return False
+        
+#         # 鎵撳紑杈撳叆PDF鏂囦欢
+#         pdf_document = fitz.open(input_file)
+        
+#         # 鍒涘缓鏂扮殑PDF鏂囨。
+#         new_pdf = fitz.open()
+#         new_pdf.insert_pdf(pdf_document)
+        
+#         # 淇濆瓨杈撳嚭鏂囦欢
+#         new_pdf.save(output_file)
+        
+#         # 鍏抽棴鏂囨。
+#         pdf_document.close()
+#         new_pdf.close()
+        
+#         return True
+            
+#     except FileNotFoundError:
+#         print(f"閿欒锛氭壘涓嶅埌鏂囦欢 '{input_file}'")
+#         return False
+#     except PermissionError:
+#         print(f"閿欒锛氭潈闄愪笉瓒筹紝鏃犳硶璁块棶鏂囦欢")
+#         return False
+#     except Exception as pdf_error:
+#         error_msg = str(pdf_error).lower()
+#         if "damaged" in error_msg or "corrupt" in error_msg:
+#             print(f"閿欒锛歅DF鏂囦欢 '{input_file}' 宸叉崯鍧�")
+#         else:
+#             print(f"鍙戠敓閿欒锛歿str(pdf_error)}")
+#         return False
+
+def main():
+    """涓诲嚱鏁�"""
+    if len(sys.argv) < 2:
+        print("鐢ㄦ硶锛歱ython main.py <杈撳叆PDF鏂囦欢鎴栫洰褰�>")
+        sys.exit(1)
+    
+    if len(sys.argv) > 2:
+        files = list(map(Path, sys.argv[1:]))
+    else:
+        input_path = Path(sys.argv[1])
+        if input_path.is_dir():
+            files = list(input_path.glob("**/*.pdf"))
+        else:
+            print("姝ｅ湪澶勭悊",input_path.name)
+            output_file = input_path.with_name(f"{input_path.stem}_decrypt.pdf")
+            success = copy_pdf_pages(input_path, output_file)
+            print("澶勭悊瀹屾垚" if success else "澶勭悊澶辫触")
+            return
+    
+    total = len(files)
+    # 鎵ц澶嶅埗鎿嶄綔
+    for i, pdf_file in enumerate(files, start=1):
+        rate= round(i/total *100)
+        print(f"杩涘害: ", "-"* (rate//5)," "*(20-rate//5), f"   {rate}%",sep="",end="\r")
+        import time
+        # time.sleep(1)  # 妯℃嫙澶勭悊鏃堕棿
+        if not pdf_file.is_file():
+            print(f"璺宠繃闈濸DF鏂囦欢锛歿pdf_file}")
+            continue
+        output_file = pdf_file.with_name(f"{pdf_file.stem}_decrypt.pdf")
+        success = copy_pdf_pages(pdf_file, output_file)
+
+        if not success:
+            print(f"{pdf_file.name} 澶勭悊澶辫触")
+
+if __name__ == "__main__":
+    main()
\ No newline at end of file
diff --git a/pdf_unlock/requirements.txt b/pdf_unlock/requirements.txt
new file mode 100644
index 0000000..d2e6a9e
--- /dev/null
+++ b/pdf_unlock/requirements.txt
@@ -0,0 +1 @@
+PyMuPDF==1.23.26