Rolling list of software for pdf creation.
https://github.com/RelaxedJS/ReLaXed
https://weasyprint.org/samples/
https://www.reportlab.com/casestudies/
https://github.com/igorkasyanchuk/rails_pdf
https://github.com/mileszs/wicked_pdf/tree/master
https://edinburgh-genome-foundry.github.io/pdf_reports/index.html
https://github.com/xhtml2pdf/xhtml2pdf
https://pythonhosted.org/PyPDF2/