diff --git a/src/boxtodocx/convertor.py b/src/boxtodocx/convertor.py
index 4e90e07..e1c3c58 100644
--- a/src/boxtodocx/convertor.py
+++ b/src/boxtodocx/convertor.py
@@ -53,30 +53,35 @@ def convert(
             # Set up all paths
             docx_path, assets_dir, html_path = self._setup_paths(filepath, generate_html)
             if not generate_html:
-                temp_dir = assets_dir  # Store temp_dir for cleanup
+                temp_dir = assets_dir
                 
-            # Initialize handlers
+            # Process file
+            with open(str(filepath), 'r', encoding='utf-8') as f:  # Convert to str here
+                data = json.load(f)
+            
+            # Initialize HTML handler and convert
             html_handler = HTMLHandler(str(assets_dir))
             if api_token:
                 html_handler.set_api_token(api_token)
             
             # Convert to HTML first
-            html_content, image_paths = html_handler.convert_file(
-                str(filepath),
+            html_content, image_paths = html_handler.convert_to_html(
+                data['doc']['content'],
                 credentials,
                 api_token
             )
             
             # Write HTML file
-            with open(html_path, 'w', encoding='utf-8') as f:
-                f.write(html_content)
+            html_path.parent.mkdir(parents=True, exist_ok=True)
+            with open(str(html_path), 'w', encoding='utf-8') as f:  # Convert to str here
+                f.write(str(html_content))  # Ensure html_content is string
             
             # Convert to DOCX
             docx_handler = DOCXHandler()
             docx_handler.convert_html_to_docx(
-                html_content,
-                docx_path,
-                assets_dir
+                str(html_content),  # Ensure html_content is string
+                str(docx_path),  # Convert to str here
+                str(assets_dir)  # Convert to str here
             )
             
             logger.info(f"Successfully converted {filepath.name}")
@@ -86,11 +91,10 @@ def convert(
             logger.error(f"Conversion failed for {filepath}: {str(e)}")
             raise
         finally:
-            # Cleanup temporary directory if used
             if temp_dir and not generate_html:
                 import shutil
                 try:
-                    shutil.rmtree(temp_dir)
+                    shutil.rmtree(str(temp_dir))  # Convert to str here
                     logger.debug(f"Cleaned up temporary directory: {temp_dir}")
                 except Exception as e:
                     logger.warning(f"Failed to cleanup temporary directory: {e}")