# Translate pdf with Gravity pdf

Below on example of how you can translate your PDF on the current language base on the gravity pdf filter here : <https://docs.gravitypdf.com/v6/developers/filters/gfpdf_pdf_html_output/>

```php
// Add this using plugin "Code Snippet"

// create a new meta entry to store the weglot_language for the Gravity form entries
function get_entry_meta( $entry_meta, $form_id ) {
    $entry_meta['weglot_language']   = array(
        'label'                      => 'Weglot language',
        'is_numeric'                 => false,
        'is_default_column'          => true,
        'update_entry_meta_callback' => array( $this, 'update_entry_meta' ),
                );
    return $entry_meta;
}

function update_entry_meta( $key, $lead, $form ) {
    return ""; // return the value of the entry meta
}

//use the gform_after_submission hook to store the weglot language
add_action( 'gform_after_submission', 'after_submission' );
function after_submission( $entry ) {
	$request_url_services = weglot_get_service( 'Request_Url_Service_Weglot' );
	$current_language = $request_url_services->get_current_language()->getExternalCode();
    gform_update_meta( $entry['id'], 'weglot_language', $current_language );
}

// get the meta entries to translate the pdf
add_filter( 'gfpdf_pdf_html_output', function( $html, $form, $entry, $settings, $Helper_PDF ) {
	$weglot_language = gform_get_meta( $entry['id'], 'weglot_language' );
	if($weglot_language === weglot_get_original_language()){
		return $html;
	}
	$qp = new GFPDF\Helper\Helper_QueryPath();
	$pdf_translate_service = weglot_get_service( 'Pdf_Translate_Service_Weglot' );
	$html = $pdf_translate_service->translate_pdf( $html, $weglot_language );
	$wrapper = $qp->html5( $html['content'] );
	return $wrapper->top( 'html' )->innerHTML5();

}, 10, 5 );
```