如何使用phpword将页脚延伸到整个页面的宽度？

require_once 'path/to/phpword/vendor/autoload.php';

use PhpOffice\PhpWord\Settings;
use PhpOffice\PhpWord\IOFactory;

// 设置页面布局为横向布局
Settings::setPdfRendererName(Settings::PDF_RENDERER_DOMPDF);
Settings::setPdfRendererPath('path/to/dompdf');

$phpWord = new \PhpOffice\PhpWord\PhpWord();
$section = $phpWord->addSection(array('orientation' => 'landscape'));

// 添加内容到文档

// 添加页脚
$footer = $section->addFooter();
$footer->addText('页脚内容');

// 保存文档
$objWriter = IOFactory::createWriter($phpWord, 'Word2007');
$objWriter->save('path/to/save/document.docx');