Libertarianism on the other hand is primarily about the rejection of personal restrictions

Libertarianism is closely aligned with strong property rights, and the right to exclude others from your property, the right to enter contracts, even oppressive contracts, that you’ve agreed to. In other words, the freedom to bind oneself and exclude others. Libertarians don’t believe in granting the public freedom to walk onto private land and pick fruit from its trees (or the right to harvest lumber on someone else’s land).

Strong copyright is therefore fairly associated with libertarian ideals.