## set_text(input_file_name, output_file_name, watermark_text) {#str_str_str} Adds a text watermark into the document. ```python def set_text(self, input_file_name: str, output_file_name: str, wate...... input_stream: io.BytesIO, output_stream: io.BytesIO, save_format:...input_stream | io.BytesIO | The input stream. | | output_stream | io.BytesIO...