QR PDF adds a button to the post and link editing pages to generate a ready-to-print PDF file containing a QR Code linking to them.
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Place QR PDF in your wordpress plugin folder
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Activate it via the admin panel
QR PDF is licensed under the MIT License
Copyright (c) 2014 Laboratório de Cultura Digital (http://labculturadigital.org)
TCPDF is licensed under the GNU LGPL version 3 or later
Copyright (c) 2002-2014 Nicola Asuni (Tecnick.com LTD, www.tecnick.com)
Read the files in the tcpdf directory for more information