Check pdf file size in script

//Load the file

let fileObj = file.load({ id: fileId });

                        let fileSizeBytes = fileObj.size;

                        let fileURL = fileObj.url;

                     //Convert it into MB

                        let fileSizeMB = (fileSizeBytes / (1024 * 1024)).toFixed(2);

                        log.debug(“File Size (MB)”, fileSizeMB);