Download PDF on form submission

I want the user to be able to download a PDF file after registering on the site with a simple ‘Name’ and ‘Email’ form.

Is this possible with Contact Form 7? I have tried to combine with other plugins to achieve this but not been successful. I have also tried with the following code but no had any luck:

.htaccess file:

<FilesMatch "\.(?i:pdf)$">
   ForceType application/octet-stream
   Header set Content-Disposition attachment
</FilesMatch>

functions.php:

function mycustom_wp_footer() {
?>
<script type="text/javascript">
document.addEventListener( 'wpcf7mailsent', function( event ) {
   if ( '1497' == event.detail.contactFormId ) {
      window.open( 'https://stagingarea2.craigsapsford.com/wpcontent/uploads/dlm_uploads/2017/11/Test-Document.pdf' );
   }
}, false );
</script>
<?php
}

Can anyone assist me with this?

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