PDF file htaccess for react site

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /

RewriteRule ^index\.html$ - [L]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d

RewriteRule . /index.html [L]
</IfModule>

<FilesMatch "\.pdf$">
    Header set Content-Disposition "inline"
</FilesMatch>