If you're self publishing (like I was), your publisher is probably Amazon, and they take a PDF, which is the output of weasyprint. I haven't looked at wider di

If you're self publishing (like I was), your publisher is probably Amazon, and they take a PDF, which is the output of weasyprint. I haven't looked at wider distribution, but I believe most of the print on demand publishers accept a PDF file. I think some (all?) also take InDesign, which is Adobe's thing.