Back to directory

Prawn/QRCode

A Ruby extension for the Prawn PDF-generation library that adds simple QR-code generation and rendering to a Prawn document.

Prawn/QRCode

Prawn/QRCode is a small extension to the Prawn PDF library that simplifies adding QR codes to a generated PDF document. It requires Prawn version 1.0.0 or later and installs as a Ruby gem.

The gem's own examples folder contains a full set of usage examples for rendering codes into a document. It is released under the Apache-2.0 license, and notes that QR Code is a registered trademark of Denso Wave, which it credits as the format's owner.

More in Libraries

See all 292
  • OpenDecision

    deepanwadhwa.github.io

    An open-source Python package that answers typed questions about application state or documents using a local natural-language-inference model, returning structured choice, score, yes/no or evidence-relation values instead of free text.

  • TradeCanvas

    bonguynvan.github.io

    A zero-dependency canvas charting engine for building TradingView-style trading charts in JavaScript, with 66 technical indicators, 24 drawing tools, 17 chart types, and real-time streaming.

  • 3d retro graphics

    3d-retro.com

    A free, CC0-licensed library of copy-paste retro 3D and demoscene graphics effects, such as plasma, raytracing, and voxel terrain, runnable as WebGL 1 or plain 2D canvas.