diff --git a/jikimo_printing/models/jikimo_printing.py b/jikimo_printing/models/jikimo_printing.py
index 32ff5474..0bb02215 100644
--- a/jikimo_printing/models/jikimo_printing.py
+++ b/jikimo_printing/models/jikimo_printing.py
@@ -6,6 +6,7 @@ from PIL import Image
 import logging
 from reportlab.lib.utils import ImageReader
 from odoo import models, fields, api
+import base64
 
 _logger = logging.getLogger(__name__)
 
@@ -55,7 +56,85 @@ class JikimoPrinting(models.AbstractModel):
     def print_pdf(self, pdf_data):
         """
             打印PDF
-        """ 
+        """
+        _logger.info("PDF打印开始")
+        
+        # 检查输入数据类型
+        _logger.info(f"输入数据类型: {type(pdf_data)}")
+        
+        # 如果数据是bytes类型但看起来是base64编码，先解码一次
+        if isinstance(pdf_data, bytes) and pdf_data[:10].decode('ascii', errors='ignore').isalnum():
+            try:
+                # 尝试将bytes转为字符串后解码
+                pdf_data_str = pdf_data.decode('ascii', errors='ignore')
+                decoded_data = base64.b64decode(pdf_data_str)
+                _logger.info(f"对bytes类型的base64数据进行解码，解码后前20字节: {decoded_data[:20]}")
+                # 检查是否是PDF格式
+                if decoded_data[:4] == b'%PDF':
+                    _logger.info("解码后得到PDF格式数据")
+                    pdf_data = decoded_data
+            except Exception as e:
+                _logger.error(f"base64解码bytes数据失败: {str(e)}")
+        
+        # 常规的数据处理
+        if isinstance(pdf_data, str):
+            _logger.info("输入数据是字符串类型")
+            try:
+                decoded_data = base64.b64decode(pdf_data)
+                _logger.info(f"成功解码base64数据，解码后前20字节: {decoded_data[:20]}")
+            except Exception as e:
+                _logger.error(f"base64解码失败: {str(e)}")
+                decoded_data = pdf_data.encode()
+        else:
+            _logger.info("处理bytes类型数据")
+            decoded_data = pdf_data
+        
+        # 检查解码后数据是否为PDF格式
+        is_pdf = False
+        try:
+            if decoded_data[:4] == b'%PDF':
+                is_pdf = True
+                _logger.info("数据是PDF格式")
+            else:
+                _logger.info(f"数据不是PDF格式，前20字节: {decoded_data[:20]}")
+                # 最后尝试直接以base64解码
+                try:
+                    final_try = base64.b64decode(decoded_data)
+                    if final_try[:4] == b'%PDF':
+                        _logger.info("最后尝试解码成功")
+                        decoded_data = final_try
+                        is_pdf = True
+                except:
+                    _logger.info("最后尝试解码失败")
+        except Exception as e:
+            _logger.error(f"检查PDF格式时出错: {str(e)}")
+        
+        # 处理二进制数据
+        pdf_buffer = BytesIO()
+        pdf_buffer.write(decoded_data)
+        pdf_buffer.seek(0)
+        
+        # 获取PDF内容
+        pdf_content = pdf_buffer.getvalue()
+        _logger.info(f"处理后的内容前20字节: {pdf_content[:20]}")
+        
+        # 获取默认打印机
         printer = self.env['printing.printer'].get_default()
-        _logger.info(f"打印内容: {pdf_data}")
-        printer.print_document(report=None, content = pdf_data, doc_format='pdf') 
\ No newline at end of file
+        if not printer:
+            _logger.error("未找到默认打印机")
+            return
+        
+        # 使用正确的格式打印
+        # try:
+        #     if is_pdf:
+        #         _logger.info("使用PDF格式打印")
+        #         printer.print_document(report=None, content=pdf_content, doc_format='pdf')
+        #     else:
+        #         _logger.info("使用RAW格式打印")
+        #         printer.print_document(report=None, content=pdf_content, doc_format='raw')
+        # except Exception as e:
+        #     _logger.error(f"打印时出错: {str(e)}")
+        
+        # 清理资源
+        pdf_buffer.close()
+        _logger.info("PDF打印结束") 
\ No newline at end of file
diff --git a/jikimo_printing/models/workorder_printing.py b/jikimo_printing/models/workorder_printing.py
index 97c857ca..4c96ad60 100644
--- a/jikimo_printing/models/workorder_printing.py
+++ b/jikimo_printing/models/workorder_printing.py
@@ -19,6 +19,7 @@ class MrpWorkorder(models.Model):
                     if pdf_data:
                         try:
                             # 执行打印
+                            _logger.info(f"准备打印工单 {wo.name} 的PDF") 
                             self.env['jikimo.printing'].print_pdf(pdf_data)
                             wo.production_id.product_id.is_print_program = True
                             _logger.info(f"工单 {wo.name} 的PDF已成功打印")     
diff --git a/requirements.txt b/requirements.txt
index dd3bbd58..5aabe0ef 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,7 @@
 pystrich
-cpca
-pycryptodome==3.20
+cpca==0.5.5
+wechatpy==1.8.18
+pycryptodome==3.22.0
+openupgradelib==3.10.0
+opcua==0.98.13
+openpyxl
\ No newline at end of file