Mindee's fork of Origami, a pure Ruby library to parse, modify and generate PDF documents.

Integrate with MuPDF for analyzing and converting PDFs.

Extend Rails capabilities of importing and exporting excel, pdf and other extension

Visio2pdf is a convert library, and easy to convert Visio files to PDF files with Ruby. Detailed description please see the README.md.

Provided a valid lds.org username and password, Wagon will download all the information from the Photo Directory page and compile it into a convenient PDF.

Convert PDB (Palm Database) Ebook to PDF format. Specially handle document from haodoo.net.

Provides wkhtmltopdf-amd64 binary and connects them to common pdf libraries, for use with heroku.

Similatron reports similarities between images, PDFs, or plain text files.It's particularly useful for tests for image generating functionalities

Easily convert Markdown documents to PDF files.

Generate your own PDF/HTML songbook.

Payday is a library for rendering invoices. At present it supports rendering invoices to pdfs, but we're planning on adding support for other formats in the near future.

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...)

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

A minimal wrapper for the PrinceXML PDF generation library.

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

A library for creating 2D vector graphics as PDF.

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

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

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.

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