QPDFWriter::init()
{
    filename = 0;
    file = 0;
    close_file = false;
    buffer_pipeline = 0;
    output_buffer = 0;
    normalize_content_set = false;
    normalize_content = false;
    stream_data_mode_set = false;
    stream_data_mode = qpdf_s_compress;
    qdf_mode = false;
    precheck_streams = false;
    preserve_unreferenced_objects = false;
    newline_before_endstream = false;
    static_id = false;
    suppress_original_object_ids = false;
    direct_stream_lengths = true;
    encrypted = false;
    preserve_encryption = true;
    linearized = false;
    object_stream_mode = qpdf_o_preserve;
    encrypt_metadata = true;
    encrypt_use_aes = false;
    min_extension_level = 0;
    final_extension_level = 0;
    forced_extension_level = 0;
    encryption_V = 0;
    encryption_R = 0;
    encryption_dict_objid = 0;
    pipeline = 0;
    next_objid = 1;
    cur_stream_length_id = 0;
    cur_stream_length = 0;
    added_newline = false;
    max_ostream_index = 0;
    deterministic_id = false;
    md5_pipeline = 0;
}
Unknown