If you can use spreadsheets instead of PDFs the axlsx gem is quite good. You can generate various charts with that, by either passing in the values or by referring to a cell grid.
Although I suppose you might need the layout etc. that a PDF provides for am energy bill. Just FYI, as I've used it at work with much success. Robert [1] Open Office XML (should work in Excel, LibreOffice, Numbers). See: https://github.com/randym/axlsx -- You received this message because you are subscribed to the Google Groups "Ruby or Rails Oceania" group. To post to this group, send email to rails-oceania@googlegroups.com. To unsubscribe from this group, send email to rails-oceania+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rails-oceania?hl=en.