Allows you to generate an AFIP bill in PDF format

A Prawn PDF component which adds basic HTML support

Easily create PDF and Excel files from html in your Ruby application using the DocRaptor API.

Optical mark recognition of multiple-choice tests and surveys. Low-level ruby library to generate response sheets in PDF form and to automatically score manually filled-out forms.

Copyleaks detects plagiarism and checks content distribution online. Use Copyleaks to find out if textual content is original and if it has been used before. With Copyleaks cloud publishers, academics, and more can scan files (pdf, doc, docx, ocr...), URLs and free text for plagiarism check.

A gem that provides a client interface for the Gotenberg PDF generate service

This is the beginnings of a prawn extension for adding interactive forms to PDFs.

Adds many useful reports, with PDF and CSV output, to Spree

Integrate with MuPDF for analyzing and converting PDFs.

Converts source code into a (bookmarked, themed, and syntax highlighted!) PDF.

Adds right-to-left (RTL) text support to Prawn PDF generator. Fully supports Arabic script languages (Arabic, Persian, Urdu) with contextual letter shaping and ligatures. Also supports Hebrew and other RTL languages with bidirectional text reordering. Handles mixed LTR/RTL text properly.

Bulk rename of ebook files (pdf, epub, mobi) based on embedded metadata

Client library for the DocSpring PDF generation and e-signature service

PDF rending plugin for Rails using FlyingSaucer.

features2cards. Generate printable PDF index cards from Cucumber feature files

Script to merge SVG files with CSV data-files using Inkscape, to produce one outputfile (e.g. PDF) per data-row.

Simple tool, with which you can fully populate your CV in user-friendly YAML and then have it generated in HTML or PDF format.

A HTML5 client-side solution for generating PDFs.

Generate PDF from HTML using PhantomJS

Finds metadata on scholarly works and is able to download pdfs of whitepapers.