No one would make money off of it. That is the point. There are innumerable things which are worthwhile which are not profitable.
The idea that we do not do a world library of free digital copies of every book ever written really highlights the problem with the thinking your comment has demonstrated. The idea that individual pursuits must make a profit to be justified leads to us doing terrible things like: not making a free world library of every book.
Though in this particular case this also demonstrates a major problem with intellectual property concepts. Actually hosting the library isn't very expensive. But we have made doing so illegal. Of course, authors deserve to live a decent life just like everyone else. We currently do that by restricting all access to duplications of information they have produced so that they can charge a fee for access, and that fee provides for their survival.
But we suffer an incalculable loss by making all this information restricted. In my view we would be MUCH better off as a society with respect to creativity, innovation, and other popular metrics for progress, if we actually made sure as a society that every person's survival was provided for with no need for them to pay for it. Then authors wouldn't need to get paid, engineers could do what they love to do and post all their work as open source, and we could have a free library for everyone. This extreme openness would in my mind lead to more rapid innovation, and markets would still function as first movers would maintain an advantage for new product releases, though they would have to keep moving as anything they've done that is worthwhile would be copied. But since no one's livelihood would be at stake, this is not a real issue.
This can all be done in a voluntary, libertarian society as long as we have community ownership of the means of production, and promote these ideals of community support in this society. And I think we would be way better off. Doing this would allow us to offer every book ever recorded for free to every person on Earth. A big change, but one with obviously a very big benefit to humanity.
One note though: people who want to own a lot for themselves really mess this up. So people would need to dissuade those people from acting that way. My preferred method of doing so is by starving them of workers and customers, though when it comes to control of land matters get more serious.