diff --git a/flask_app/general/insert_del_pagemark.py b/flask_app/general/insert_del_pagemark.py
index 8c073bb..3157871 100644
--- a/flask_app/general/insert_del_pagemark.py
+++ b/flask_app/general/insert_del_pagemark.py
@@ -1,5 +1,5 @@
 import os
-import re
+from docx.opc.exceptions import PackageNotFoundError
 from io import BytesIO
 from PyPDF2 import PdfReader, PdfWriter
 from docx import Document
@@ -65,11 +65,16 @@ def insert_mark(input_pdf_path):
 
 
 def delete_mark(docx_path):
-    """
-    删除docx文档中的所有标记
-    :param docx_path: docx文件路径
-    """
-    docx = Document(docx_path)
+    try:
+        docx = Document(docx_path)
+    except KeyError as e:
+        print(f"Error opening document: {e}")
+        return ""
+    except PackageNotFoundError as e:
+        print(f"Invalid package: {e}")
+        return ""
+
+    # 继续处理文档
     find_flag = False
     for para in docx.paragraphs:
         # 匹配标记: [$$index_mark_X$$]
@@ -79,9 +84,6 @@ def delete_mark(docx_path):
         if find_flag and "w:sectPr" in para._element.xml:  # 删空白分节符
             para._element.getparent().remove(para._element)
             find_flag = False
-
-    # 获取文件路径信息
-    import os
     dir_path = os.path.dirname(docx_path)
     new_file_path = os.path.join(dir_path, 'invalid_del.docx')
 
@@ -90,8 +92,12 @@ def delete_mark(docx_path):
     return new_file_path
 
 if __name__ == '__main__':
-    input=r'C:\Users\Administrator\Desktop\文件解析问题\文件解析问题\baada43d-24f6-459d-8a81-219d130f20da\ztbfile.pdf'
+    # input=r'D:\flask_project\flask_app\static\output\output1\90b073b5-b8fb-4b11-9962-10de7c3f3854\invalid_added.docx'
     # input=r'C:\Users\Administrator\Desktop\new招标文件\output5\广水市公安局音视频监控系统设备采购项目_procurement.pdf'
-    output=insert_mark(input)
-    # doc_path = r'C:\Users\Administrator\Desktop\fsdownload\1073c74f-02b5-463e-a129-23c790a3c872\invalid_added.docx'
-    # delete_mark(doc_path)
\ No newline at end of file
+    # output=insert_mark(input)
+    doc_path = r'D:\flask_project\flask_app\static\output\output1\90b073b5-b8fb-4b11-9962-10de7c3f3854\invalid_added.docx'
+    res=delete_mark(doc_path)
+    if res:
+        print(res)
+    else:
+        print("No")
\ No newline at end of file
diff --git a/flask_app/general/json_utils.py b/flask_app/general/json_utils.py
index 3e43abc..759caa8 100644
--- a/flask_app/general/json_utils.py
+++ b/flask_app/general/json_utils.py
@@ -227,6 +227,40 @@ def parse_json_with_duplicates(raw_string):
         print("未找到有效的 JSON 内容。")
         return {}  # 返回空字典
 
+def extract_first_json(s):
+    """
+    从字符串中提取第一个完整的 JSON 对象。如果 JSON 对象不完整，尝试补全缺失的括号。
+
+    Args:
+        s (str): 输入字符串。
+
+    Returns:
+        str or None: 提取到的 JSON 字符串，或 None 如果未找到。
+    """
+    start = s.find('{')
+    if start == -1:
+        return None
+
+    stack = []
+    for i in range(start, len(s)):
+        char = s[i]
+        if char == '{':
+            stack.append('{')
+        elif char == '}':
+            if stack:
+                stack.pop()
+                if not stack:
+                    # 找到一个完整的 JSON 对象
+                    return s[start:i+1]
+            else:
+                # 多余的右括号，忽略
+                pass
+    # 如果遍历完后栈不为空，补全缺失的右括号
+    if stack:
+        missing = '}' * len(stack)
+        return s[start:] + missing
+    return None
+
 def extract_content_from_json(input_string,flag=False):
     """
     输入字符串，尝试解析 JSON 数据：
@@ -292,8 +326,19 @@ def extract_content_from_json(input_string,flag=False):
         return parsed_data  # 返回解析后的字典
     except json.JSONDecodeError:
         print("方法3（非法转义修复）解析失败。")
+        # 所有方法均失败后，尝试使用 extract_first_json 作为最后手段
+    print("尝试使用 extract_first_json 作为最后手段。")
+    fixed_json_final = extract_first_json(input_string)
+    if fixed_json_final:
+        try:
+            parsed_data = parse_json(fixed_json_final)
+            print("使用 extract_first_json 后解析成功。")
+            return parsed_data
+        except json.JSONDecodeError:
+            print("使用 extract_first_json 后解析失败。")
+    else:
+        print("extract_first_json 未能提取到有效的 JSON。")
 
-    # 如果所有方法都失败，检查字符串长度
     print("所有修复方法均失败。传入的字符串：")
     print(input_string)
     print("-------------------")
diff --git a/flask_app/routes/工程标解析main.py b/flask_app/routes/工程标解析main.py
index 4a1163b..2723d48 100644
--- a/flask_app/routes/工程标解析main.py
+++ b/flask_app/routes/工程标解析main.py
@@ -65,9 +65,10 @@ def preprocess_files(output_folder, file_path, file_type,logger):
         print("yes")
     except Exception as e:
         # 捕获异常并打印错误信息
-        invalid_added_docx=pdf2docx(pdf_path)
+        invalid_added_docx=pdf2docx(invalid_path)
     invalid_deleted_docx=delete_mark(invalid_added_docx)       #无标记的invalid_path
-
+    if not invalid_deleted_docx:
+        invalid_deleted_docx=pdf2docx(invalid_path)
     merged_baseinfo_path=truncate_files[-1]
     more_path=[merged_baseinfo_path,tobidders_notice]
     merged_baseinfo_path_more=os.path.join(output_folder,"merged_baseinfo_path_more.pdf")
diff --git a/flask_app/routes/货物标解析main.py b/flask_app/routes/货物标解析main.py
index 5b8f54b..28fd457 100644
--- a/flask_app/routes/货物标解析main.py
+++ b/flask_app/routes/货物标解析main.py
@@ -53,8 +53,10 @@ def preprocess_files(output_folder, file_path, file_type,logger):
         print("yes")
     except Exception as e:
         # 捕获异常并打印错误信息
-        invalid_added_docx=pdf2docx(pdf_path)
+        invalid_added_docx=pdf2docx(invalid_path)
     invalid_deleted_docx = delete_mark(invalid_added_docx)  # 无标记的invalid_path
+    if not invalid_deleted_docx:
+        invalid_deleted_docx=pdf2docx(invalid_path)
 
     # invalid_docpath = invalid_added_docx  # docx截取无效标部分
     procurement_path = truncate_files[5]  # 采购需求