Submitting a supplementary paper, how long is too long?

<p>Hi there,</p>

<p>I'm submitting a supplementary Physics paper I've written along with my application, it doesn't say anything on the website about how long supplementary materials can be. The paper is about 3-4 pages long, is that too much? How do you think that would go down with admission?</p>

<p>Thanks in advance for any help :)</p>

<p>I don't think Harvard puts a page limit but just keep it in consideration that the admissions office will receive 20,000+ applications. 20,000 + apps x all of the docs = tons of paper</p>