@alxmar
Hello, the default language does not support Cyrillic fonts but you can easily change this to a font that does, for example Noto Sans. Place this in your themes functions.php file
/**
* Change PDF font to Noto Sans for language support
*
* @return void
*/
function child_theme_wc_cart_pdf_before_template() {
?>
<link href=”//fonts.googleapis.com/css?family=Noto+Sans:400,400i,700,700i&display=swap&subset=cyrillic,cyrillic-ext,devanagari,greek,greek-ext,latin-ext,vietnamese” rel=”stylesheet”>
<style>
body {
font-family: ‘Noto Sans’, sans-serif;
}
</style>
<?php
}
add_action( ‘wc_cart_pdf_before_template’, ‘child_theme_wc_cart_pdf_before_template’ );