rpdf2txt will turn a PDF-file into a textfile.

Uses wkhtmltopdf to create PDFs using HTML(Windows-compatible)

Parsing PDF files to the CSV format

"BootstrapPDF is a tool for creating good looking and well structured PDFs with the help of Twitter Bootstrap."

Ruby wrapper for the awesome pdf2htmlex

Stitching and unstitching for PDFs. A java library delivered via ruby out of convenience.

convert anything to pdf (via pandoc and pdfkit)

This gem is built to convert HTML document into PDFs. There are lots of tools out there that do this. This one uses Selenium+Chromedriver to render the HTML and generate the PDF.

Validate PDF files for PDF/A conformity.

Add PDF 'images' as images in prawn documents

PDFTk wrapper to extract form fiels

A lightweight Ruby gem for rendering PDFs with Chrome Headless

Create PDFs for download from your posts, using latex flexible and comfortable.

Special Gem for MetaKGP members - to convert all images in a directory to PDFs in another directory. Supports multi-page Question paper images too. Please follow the naming scheme for papers - for example, end-autumn-2016-MA20104-kdfh87.jpg in case of single-page Question paper & mid-spring-2...

Generate PDFs from HTML/CSS with middleman

Turn your Rails actions/views into PDFs without a web browser

Much longer explanation of the example!

pdf renderer for rails

Uses wkhtmltopdf to create PDFs using HTML, add :exe option

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. Mac users that have Textmate installed can have source code highlighted with his favorite theme.