Update app.py

app.py

@@ -114,12 +114,15 @@ def perform_ocr_file(file_obj: Any) -> Tuple[str, str, Dict[str, str]]:
         if file_ext == '.pdf':
             try:
                 with open(file_path, "rb") as f:
-                    file_content = f.read()
+                    file_content = f.read()  # Read the entire file content
                 
                 logger.info(f"Uploading PDF {file_name} to Mistral...")
+                # Use dictionary format as per documentation
                 uploaded_pdf = client.files.upload(
-                    file=file_content,
-                    filename=file_name,
+                    file={
+                        "file_name": file_name,
+                        "content": file_content,
+                    },
                     purpose="ocr"
                 )
                 uploaded_file_id = uploaded_pdf.id