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

A pure Ruby library to generate a USPS Intelligent Mail barcode. It generates the string of characters to print with one of the USPS Intelligent Mail barcode fonts.

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

A Ruby Gem with bioinformatics tools for processing viral NGS data. Specifically for Primer-ID sequencing and HIV drug resistance analysis.

Resume generation and writing tools

CSS 組版エンジン Vivliostyle をコアに据え、前処理（QueryStream 展開・画像最適化・クロスリファレンス）からビルド、後処理（PDF しおり・表紙結合・圧縮）まで、執筆から入稿に至る工程を自動化する CLI ツールです。

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.

The Wco Email client.

https://wasya.co

Transforms user input into a complete 12-tone row and computes all 48 (at most) possible rows that result from the matrix of that row.

Payday is a library for rendering invoices to pdf.

Simple PDF maze generator, based on spanning trees. Can generate one or many mazes of different complexities.

Highly customizable invoice builder for ruby with bulk and example functions for fast processing.

A marking assistant for the York University Introduction to C course. No official association with the University of York.

web-based presentation tool