Need to preprocess CMYK colors with Sass? The sass-cmyk plugin lets you construct CMYK color objects with cmyk(), adds support for performing math operations (+, *, /) on CMYK colors, and provides functions for mixing and scaling color components. sass-cmyk outputs CMYK color values ...

It is a pdf

Pretty-prints JSON-based API to PDF.

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

Restful Press is an automated service for converting your app's views into PDFs.

Simple command line tool/pseudo API to generate PDF reports from GNUCash..

The Datalab gem implements a lightweight interface to the Datalab API. The Datalab API can convert a number of document formats, including PDF, Word and Powerpoint to Markdown. In addition in offers sophisticate OCR, layout and line detection for documents an images.

Sypht(https://sypht.com) is a SaaS API((https://docs.sypht.com/) which extracts key fields from documents. For example, you can upload an image or pdf of a bill or invoice and extract the amount due, due date, invoice number and biller information.

Wepawet is a service for detecting and analyzing web-based malware. It currently handles Flash, JavaScript, and PDF files. http://wepawet.cs.ucsb.edu

The Flying Saucer gem gives JRuby access to the Flying Saucer XHTML renderer. It also provides Rails integration to simplify sending PDFs generated from XHTML to the browser.

This module contains the signatures for use either independently or via the `filemagick` gem. The various file signatures currently supported are taken from [Gary Kessler's website][http://www.garykessler.net/library/file_sigs.html] The signatures are stored in a YAML file in the following fo...

Craft beautiful PDFs with Prawn and components

XHTML to PDF using Flying Saucer java library

Dot Grid planner PDF generator.

Converts markdown files into PDF documents using options passed in a hash.

A native command line client library for the DocRaptor HTML to PDF/XLS service.

convert inkscape (SVG) files to pdf documents

This gem uses OpenOffice and pdftk to convert, split, join, fill and copy files. It may be usefull if you have many documents to work with. It is not realy fast solution and it depend on istalled software

Sinatra extension to add support for pdf rendering with Prawn templates.

A composer library to use PrexView a fast, scalable and very friendly service for programatic HTML, PDF, PNG or JPG generation using JSON or XML data.