How to add expires headers in WordPress.com page

I have a page on WordPress.com where I want to add expires headers.
I see that in WordPress.com there is no htaccess and that the server is nginx, what is the way to add this type of headers?
For example:

location ~*  \.(jpg|jpeg|gif|png|svg)$ {
		expires 365d;
	}

	location ~*  \.(pdf|css|html|js|swf)$ {
		expires 2d;
	}

Edit: I tried with the plugin Hummingbird but it says the cache types don’t meet the recommended period type and it won’t get activated.

• This topic was modified 3 years, 4 months ago by blacksun1991.
• This topic was modified 3 years, 4 months ago by Jan Dembowski. Reason: Moved to Fixing WordPress, this is not an Developing with WordPress topic