=============
Pdf watermark
=============

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This module was written to add watermarks (backgrounds) to PDF reports. Because of the way wkhtmltopdf handles headers and footers in the current versions, it is quite impossible to have a background for the complete page using HTML and CSS. That is why this module inserts the image at the PDF level.

**Table of contents**

.. contents::
   :local:

Installation
============


As PyPDF is not supported in python3, you need to install PyPDF2::

$ pip install pypdf2

Usage
=====

To use this module, you need to:

#. go to your report
#. select a PDF or image to use as watermark. Note that resolutions and size must match, otherwise you'll have funny results
#. You can also fill in an expression that returns the data (base64 encoded) to be used as watermark

Known issues / Roadmap
======================

This module depends on support for transparent backgrounds in Wkhtmltopdf, which has been flaky in the past. This module has been reported to work with Wkhtmltopdf 0.12.4.

Changelog
=========

12.0.1.0.0 (2019-11-18)
~~~~~~~~~~~~~~~~~~~~~~~

* [MIG] Migration to V12.

13.0.1.0.0 (2021-01-27)
~~~~~~~~~~~~~~~~~~~~~~~

* [MIG] Migration to V13.

Bug Tracker
===========

Bugs are tracked on `GitHub Issues <https://github.com/OCA/reporting-engine/issues>`_.
In case of trouble, please check there if your issue has already been reported.
If you spotted it first, help us smashing it by providing a detailed and welcomed
`feedback <https://github.com/OCA/reporting-engine/issues/new?body=module:%20report_qweb_pdf_watermark%0Aversion:%2013.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.

Do not contact contributors directly about support or help with technical issues.

Credits
=======

Authors
~~~~~~~

* Therp BV

Contributors
~~~~~~~~~~~~

* Holger Brunn <hbrunn@therp.nl>
* Stefan Rijnhart <stefan@opener.am>
* Rod Schouteden <rod.schouteden@dynapps.be>
* Robin Goots <robin.goots@dynapps.be>
* Foram Shah <foram.shah@initos.com>

Maintainers
~~~~~~~~~~~

This module is maintained by the OCA.

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   :alt: Odoo Community Association
   :target: https://odoo-community.org

OCA, or the Odoo Community Association, is a nonprofit organization whose
mission is to support the collaborative development of Odoo features and
promote its widespread use.

This module is part of the `OCA/reporting-engine <https://github.com/OCA/reporting-engine/tree/13.0/report_qweb_pdf_watermark>`_ project on GitHub.

You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.
