honyomi is a e-book (pdf) search engine. It have command line interface and web application. It will accelerate the e-book of your life.

download the map and convert to pdf

Add watermarks to existing PDF files, the easy way.

Postino allows you to generate Italian postal payment forms in PDF format using Prawn.

Prawn report is a class repository wich uses prawn gem capabilities to generate PDF documents in order to make it easy to create real life reports.

Transform Markdown docs into two-column PDFs.

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

Transform HTML into PDF/PNG/JPEG using Google Chrome

Prawn itself provides only linear and radial gradients. This is the more advanced shadings that PDF spec defines.

Generate sets of labels or stickers programmatically using Prawn PDF.

create pdf labels sheet defining template and label start point

PrinceXML is a PDF generator that takes html,css input. This gem is a simple wrapper for use with ruby apps

Generats png images of progress bars, useful for web pages or use in pdf files.

Generate PDF/HTML from articles posted on qiita.com. Uses wkhtmltopdf on the back-end which renders HTML using Webkit.

A Rack middleware to work around the IE/PDF/SSL bug described here: http://stackoverflow.com/questions/1574108/rails-pdf-generation-with-prawn-in-ie7

Client for LSF PDF service

A minimal wrapper for the PrinceXML PDF generation library.

download map from map.sogou.com and turn into pdf

A super easy way to fill out a PDF form from a Rails application.

Docsplit-ng 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...)