diff --git a/src/BookPdfGenerator.php b/src/BookPdfGenerator.php
index cf2cd4c..c2a699b 100644
--- a/src/BookPdfGenerator.php
+++ b/src/BookPdfGenerator.php
@@ -117,7 +117,7 @@ class BookPdfGenerator {
       $defaultOptions['username'] = $basicUser;
       $defaultOptions['password'] = $basicPass;
     }
-    $pdf = new Pdf();
+    $pdf = new Pdf(['encoding' => 'utf-8']);
     $event = $this->eventDispatcher->dispatch(new BookPdfPreGenerateEvent($book, $pdf, $defaultOptions), 'book_pdf.pre');
     $pdf->setOptions($event->getGlobalOptions());
     if (($content = $pdf->toString())) {