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Watermark (React)

by
Odoo
v 19.0 Third Party 13
Download for v 19.0 Deploy on Odoo.sh Live Preview
Availability
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Odoo.sh
On Premise
Community Apps Dependencies
Lines of code 1116
Technical Name sc_react_watermark
LicenseOPL-1
Websitehttps://shachain.dev
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Availability
Odoo Online
Odoo.sh
On Premise
Community Apps Dependencies
Lines of code 1116
Technical Name sc_react_watermark
LicenseOPL-1
Websitehttps://shachain.dev
Shachain
Email Us
WhatsApp QRWhatsApp
Shachain
Email Us
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Full-Featured Watermark System for Odoo

Text, image and invisible blind watermarks — with MutationObserver anti-tamper protection, screenshot leak tracing, and audit logging.

Live Preview demo.shachain.dev
Shachain
React-powered addons for Odoo
Watermark settings page in Odoo system settings

What it does

Watermark (React) is a full-screen background watermark system supporting text, multi-line text, image, and rich-text watermark types. It includes MutationObserver-based anti-tamper protection, invisible blind-watermark leak tracing, and audit logging — all configurable from one Odoo settings page.

Watermark System Features

Every watermark behaviour is driven from one Odoo settings page — tick an option and the overlay updates. No code, no templates.

Basic Settings

Enable Watermark switches the whole system on or off. Watermark Type picks one of four renderers — plain Text, Multi-line Text, an Image logo, or Rich-text HTML. Color and Opacity control how visible the overlay is.

Content Options

Tick Show Date, Show Company, or Show User to build the watermark text from live values, and append any fixed Custom Text. The watermark string is composed from whichever options are checked.

Style Settings

Size & Layout sets the watermark tile's width, height, rotation angle, and layout mode. Font controls size, family, weight, line height, and letter spacing. Text Style covers rendering mode, CSS filter, alignment, and spacing.

Security Settings

Turn on anti-tamper protection — a MutationObserver watches the DOM and instantly restores any watermark a user tries to remove. Enable the invisible blind-watermark layer for screenshot leak tracing, and audit logging to record every watermark load.

Advanced Settings

An additional tab for fine-tuning the watermark behaviour beyond the common options — available on the same settings page, no code changes needed.

Blind Watermark Decoder

The Decode tool extracts the hidden blind watermark from any screenshot. Upload an image and the decoder reveals the embedded layer — the user id and timestamp encoded at capture time — so you can trace a leak back to its source.

Blind watermark decoder extracting hidden watermark from an uploaded screenshot

Audit Log

Every watermark load is recorded in the Audit Logs view with the date, user, company, IP address, and the blind-watermark content that was embedded — a complete trail of who viewed what, and when.

Watermark audit log listing date, user, company, IP address, and blind watermark content

Built on

Powered by React19*OWL and the odoo-react bridge — running natively on Odoo.

Frequently Asked Questions

Sometimes you need a quick answer to your question. You can get it right away here.

General

Does the watermark affect page performance?
The watermark renders as a lightweight background layer. The MutationObserver is scoped and has negligible impact on normal page interaction.
Can users simply delete the watermark?
Anti-tamper protection detects DOM removal and restores the watermark automatically. The invisible blind-watermark layer also survives screenshots for leak tracing.
Does it work on mobile?
Yes — the watermark renders responsively across desktop and mobile backend views.
Is it translated?
The configuration UI follows Odoo's standard locale switching; built-in translations include Simplified Chinese, French, Spanish, German, Italian, and Portuguese (Brazil).

Setup & Install

Step 1 — Download the addon
Download the addon zip from this App Store listing to your local machine.
Step 2 — Extract into your addons path
Unzip the package and place the addon folder inside one of the directories listed in your Odoo addons_path (configured in odoo.conf).
Step 3 — Update Apps List
In Odoo, enable developer mode, open Apps, and click Update Apps List so Odoo picks up the newly placed addon.
Step 4 — Install
Search for the addon by name in Apps and click Install. This module depends on the odoo-react bridge — install it first if Odoo reports a missing dependency.

Security

What is a blind watermark?
An invisible watermark layer encoded into the page. It is not visible to the eye but can be extracted from a screenshot with the built-in decoder tool — used to trace the source of a leak.
What does the audit log record?
Each watermark load is logged with the user, IP address, timestamp, and browser information.
Watermark System Releases

Every update brings new capabilities. Track the latest features and enhancements.

Initial Public Release
Release 19.0.1.2.0 (May 2026)
  • First public version of the Watermark (React) addon.
  • Bundles four watermark types, dynamic content composition, MutationObserver anti-tamper protection, invisible blind-watermark leak tracing with a decoder tool, and an audit log.
  • Every watermark parameter is configurable from Odoo system settings — no code changes needed.

Protect every page with a watermark

4 types · Anti-tamper · Blind watermark tracing · Audit log

Live Preview demo.shachain.dev
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Odoo Proprietary License v1.0

This software and associated files (the "Software") may only be used (executed,
modified, executed after modifications) if you have purchased a valid license
from the authors, typically via Odoo Apps, or if you have received a written
agreement from the authors of the Software (see the COPYRIGHT file).

You may develop Odoo modules that use the Software as a library (typically
by depending on it, importing it and using its resources), but without copying
any source code or material from the Software. You may distribute those
modules under the license of your choice, provided that this license is
compatible with the terms of the Odoo Proprietary License (For example:
LGPL, MIT, or proprietary licenses similar to this one).

It is forbidden to publish, distribute, sublicense, or sell copies of the Software
or modified copies of the Software.

The above copyright notice and this permission notice must be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

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