Little late to this party but love the idea. One small piece of feedback: saying all PDFs are publicly available might scare people off. I'm assuming you're generating secure random links? I'd at least say it's only available to anyone with the link.

Thank you for the tip! Yes, the links are randomly generated and quite difficult to guess/bruteforce. I will update the wording accordingly.

Interesting, how did you come up with the idea? I wouldn't have guessed that there is sufficient demand for something like this. Good job!

Thanks. The idea came up thanks to the pandemic. I wanted to make it super simple to make any pdf file reachable via qr code. I’m sure the market is a lot bigger, but I never really spent any significant effort on marketing.

Is moderation and abuse of free hosting for malicious purposes an issue for you?

It was not an issue this far, but if it gets more popular, it may become an issue. I am not actively promoting it though.

I'm curious, do you store the files on s3 or something else? How costly is it?

I'm working on an image hosting side project and wanted to know. Thanks