update pdf_loader.py

loader/pdf_loader.py

@@ -39,7 +39,8 @@ class UnstructuredPaddlePDFLoader(UnstructuredFileLoader):
                         result = ocr.ocr(img_name)
                         ocr_result = [i[1][0] for line in result for i in line]
                         fout.write("\n".join(ocr_result))
-            os.remove(img_name)
+            if os.path.exists(img_name):
+                os.remove(img_name)
             return txt_file_path
 
         txt_file_path = pdf_ocr_txt(self.file_path)