Creating PDF documents with tables in Ruby, Rails
creating tables in pdf documents using fpdf
Ruby FPDF
a pdf generation library for ruby. API like arse, but nice and speedy.
FPDF: Barcodes
generating an EAN13 barcode with FPDF
UFPDF: Unicode/UTF-8 extension for FPDF | Steven Wittens - Acko.net
FPDF: Tables
PDFTable
fpdf extension for php that can render html-like tables in a pdf
Alpha-Channels / Masks
PHP FPDF code that adds support for PNGs with an alpha channel. They do pixel-based ops just like we do in Prawn