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.

Read text and metadata from files and documents (.doc, .docx, .pages, .odt, .rtf, .pdf)

This gem provides a wkhtmltopdf binary and configures wisepdf, wicked_pdf, and pdfkit for ruby based applications running in Heroku

A framework for creating e-books from Markdown using Ruby. Using the Prince PDF generator, you'll be able to get high quality PDFs. Also supports EPUB, Mobi, Text and HTML generation.

Origami is a pure Ruby library to parse, modify and generate PDF documents.

Origami is a pure Ruby library to parse, modify and generate PDF documents.

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.

PDF content extraction tool and library.

Packages the viewer distributed with PDF.js and makes it available in two styles (full, minimal).

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

AsposePdfJava is a Ruby gem that helps working with PDF documents using Aspose.Pdf for Java libraries

A extention to prawn that allows to include other pdfs either as background to write upon or to combine several pdf documents into one.

Ruby Stats is a port of the statistics libraries from PHPMath. Probability distributions include binomial, beta, and normal distributions with PDF, CDF and inverse CDF as well as Fisher's Exact Test.

A wrapper for the PrinceXML PDF generation library.

extract tables from PDF files

Convert office documents to PDF using LibreOffice.

html to pdf with phantomjs

Prawn Handler for Rails. Handles and registers pdf formats.

Chilkat Library for Ruby - FTP, SSH, SFTP, PDF, SMTP, POP3, IMAP, SSL, TLS, HTTP, RSA, Encryption, Zip, Compression, XML, ...

Grim is a simple gem for extracting a page from a pdf and converting it to an image as well as extract the text from the page as a string. It basically gives you an easy to use api to ghostscript, imagemagick, and pdftotext specific to this use case.