A framework for creating e-books from Markdown/Textile text markup using Ruby. Using the Prince PDF generator, you'll be able to get high quality PDFs. Mac users that have Textmate installed can have source code highlighted with his favorite theme.

A gem for reading file data from poppler pdfinfo

Generate PDFs from HTML/CSS with middleman

Framework for rendering PDFs using LaTeX

A command-line tool to display fonts embedded inside PDF documents.

Turn your Rails actions/views into PDFs without a web browser

Uses wkhtmltopdf to create PDFs using HTML(Windows-compatible)

A set of convenience classes integrated with Ruby on Rails to transparently and flexibly convert html to PDF, in particular output nice PDFs direct from rhtml templates

A Jekyll plugin to generate pdfs.

Wraps pdfjam/podofocrop/pdfinfo to automate stacked layouts, relying on stacking-order for sequencing.

rpdf2txt will turn a PDF-file into a textfile.

"BootstrapPDF is a tool for creating good looking and well structured PDFs with the help of Twitter Bootstrap."

Wrapper for Mozilla PDF.js library for use with rails. That library can be found here: https://github.com/mozilla/pdf.js

Stitching and unstitching for PDFs. A java library delivered via ruby out of convenience.

PDFTk wrapper to extract form fiels

Quick and dirty RubyGem to parse HSBC’s statement PDFs

Use phantomjs to gneerate pdfs

Tioga is a blend of PDF, pdfTex and ruby into a library to make scientific graphs of high quality. It is fairly complete and extensive, and comes with examples and (online) complete documentation.

Some helper methods to create pdfs and csvs ina a simple, tabellar notation. for PDF you can also add an header and a footer to each page.

Validate PDF files for PDF/A conformity.