Sphinx PDF with rst2pdf

I deliberately omit word LaT*X in my post to avoid missing people who add '-LaT*X' in search queries. Yes, it is possible to generate PDF with Sphinx without LaT*X in cross-platform way. Yes, on Windows too. You will need only rst2pdf. Actually integration with Sphinx is well described in rst2pdf manual (text and PDF), but people find it hard to find this information, so I'll quote checklist here:

1. install rst2pdf
2. register rst2pdf in your conf.py Sphinx config
   extensions = ['sphinx.ext.autodoc','rst2pdf.pdfbuilder']
   
3. run
   sphinx-build -bpdf sourcedir outdir

I hope it was helpful. Actually, check the manual - it has some useful options for conf.py and it's more up-to-date.