This library contains additional functionality that is not provided by the main HexaPDF library.
To use it, just
require 'hexapdf-extras' and it will update the
HexaPDF configuration settings to make the various extensions available.
Note that you need to install the dependencies of the features you use yourself as they are not listed in the gem file!
This extension plugs into the graphic objects and boxes system of
HexaPDF and allows one to easily create a fully-scalable QR code:
require 'hexapdf' require 'hexapdf-extras' doc = HexaPDF::Document.new canvas = doc.pages.add.canvas canvas.draw(:qrcode, at: [100, 100], size: 200, data: "https://hexapdf.gettalong.org") doc.write('qrcode.pdf')
rqrcode_core library is used for actually generating the QR code. This means you need to install that library for this extension to work.
data argument can be any data that
rqrcode_core understands. The other options understood by
rqrcode_core are also supported.
Note: There was a bug in poppler (already fixed) which leads to invalid rendering in Okular (as of 2022-08-06).