You can create your slide as a text file. It means that you can version controlyour slide like your Ruby scripts. You can custom your slide style by Ruby.So Rabbit is for Rubyist. You can use RD, Markdown and Wiki format as slide source. Rabbit provides programmer friendly keyboard interface. It uses Emacs and Vistyle keybindings by default. You can use PDF and image as slide source. Rabbit can show PDF and imagedirectly. You can create your slide by other presentation tool and show yourslide by Rabbit. If you show your slide by Rabbit, you can use programmerfriendly keyboard interface provided by Rabbit to control your slide. You can upload your slide as a gem. If you publish your slide as a gem, youcan see your slide at https://slide.rabbit-shocker.org/ .

Prawn is a fast, tiny, and nimble PDF generator for Ruby

Uses wkhtmltopdf to create PDFs using HTML

Transform Markdown docs into two-column PDFs.

Ruby Ghostscript Engine is a document creation and conversion API, supporting PDF, PS, GIF, TIF, PNG, JPG… It uses the GhostScript framework for format conversion, utilizes EPS templates, and is optimized to work with larger documents.

Maruku is a Markdown interpreter in Ruby. It features native export to HTML and PDF (via Latex). The output is really beautiful!

Managing the common pdf metadata values and renaming the pdf file accordingly. Sets common tags like 'author', 'createdate', 'title', 'subject' and 'keywords' and re-uses them for renaming the file with to a human-readable identifier.

Optical mark recognition of multiple-choice tests and surveys. Low-level ruby library to generate response sheets in PDF form and to automatically score manually filled-out forms.

Utility for converting markup files to pdf files. Useful for reports etc.

Docsplit is a command-line utility and Ruby library for splitting apart documents into their component parts: searchable UTF-8 plain text, page images or thumbnails in any format, PDFs, single pages, and document metadata (title, author, number of pages...)

Dragonfly PDF analysers and processors.

Bulk rename of ebook files (pdf, epub, mobi) based on embedded metadata

bookshop is an agile book publishing framework for building pdf and (e)books using HTML5, CSS, and JavaScript. The framework is optimized to help publishers, editors, and authors quickly ramp-up, allowing them to jump in and develop their html-to-pdf/(e)book flows by favoring convention over configuration, setting them up with best-practices, standards and tools from the start.

stripe_invoice adds PDF views and automated emails to your Koudoku-based application

Convert YAML project files into a nice PDF

Ruby Monthly Calendar, Console and pdf

Creates polish invoices and proforms as HTML or PDF files

Makes it easy to create PDF documents through the Docmago API.

Super simple and fast PDF invoicing in pure Ruby (based on Prawn library).

A Ruby frontend to the pdftk binary, including FDF and XFDF creation. Also works with the PDFTK Java port. Just pass your template and a hash of data to fill in.