stationery

https://github.com/zoolutions/stationery

Stationery renders PDF documents from Phlex-style Ruby components. Describe the page with rows, columns, boxes, tables, text and images; a box-layout engine measures, places and paginates them, and a small PDF writer embeds subsetted TrueType fonts and JPEG/PNG images. It has no runtime dependencies, no native extensions and never starts another process — no Prawn, no headless browser.