PHPWord: docx в pdf, проблемы: все вопросительный знак

$phpWord = new \\PhpOffice\\PhpWord\\PhpWord();

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

Settings::setPdfRendererName(Settings::PDF_RENDERER_DOMPDF);

Settings::setPdfRendererPath('.');
Settings::setDefaultFontName('DejaVuSans');
Settings::setOutputEscapingEnabled(true);
$phpWord = IOFactory::load('dogovor.docx', 'Word2007');
$phpWord-\>save('document.pdf', 'PDF');