Watermarking images sounds simple—until you need to do it at scale, with consistent branding, full control, and without relying on cloud services or subscriptions.

WatermarkX v1.0 is a desktop application built in Python that solves exactly that problem. It’s designed for developers, photographers, and content creators who want a fast, offline, and fully controllable way to apply professional watermarks to images—individually or in batches.

The entire project is available as a standalone Windows EXE or as full Python source code, making it easy to use, customize, or integrate into existing workflows.

Why Build Another Watermarking Tool?

Most watermarking solutions fall into one of three categories:

Online tools that upload your images to third-party servers

Subscription-based desktop apps

Minimal scripts with no UI, progress tracking, or safety controls

WatermarkX was built to be:

Offline-first

One-time purchase

Predictable and safe

Customizable at the source-code level

No accounts. No APIs. No background services.

Core Features Text & Logo Watermarks

WatermarkX supports both text and PNG logo watermarks with full control over:

Opacity

Rotation

Color

Font size

Stroke / outline thickness

This ensures visibility across different image backgrounds without damaging the original image quality.

Repeating Diagonal Watermarks

For preview images or high-risk content, WatermarkX can tile a diagonal watermark across the entire image. This is especially useful for portfolios and marketplaces.

Batch Processing

Process dozens or hundreds of images in a single run. All images are processed sequentially to ensure stability and consistent results.

Drag & Drop Interface

Images or folders can be added via drag-and-drop, reducing friction for everyday use.

Real-Time Progress & Control

Live progress bar

ETA (estimated time remaining)

Images-per-second counter

Safe Start / Stop controls

You can cancel processing at any time without freezing the UI.

Technical Overview

WatermarkX is built with a simple, maintainable Python stack:

Python 3.8+

Pillow for image processing

Tkinter + ttkbootstrap for the UI

threading for non-blocking background processing

The architecture is intentionally straightforward, making it easy to:

Modify watermark logic

Add new output formats

Integrate automation

Rebrand or extend the UI

Offline by Design

All processing happens locally:

No image uploads

No telemetry

No internet required

This makes WatermarkX suitable for:

Corporate environments

Air-gapped machines

Privacy-sensitive workflows

Available Versions Windows EXE

No Python installation required

Portable

Ready to run instantly

Full Source Code

Complete Python source

Cross-platform (Windows, macOS, Linux with Python)

Ideal for developers and students

EXE + Source Code

Best value option

Use immediately, customize later

Licensing

WatermarkX is distributed under a single-user commercial license:

Personal and commercial use allowed

Redistribution or resale as a competing product is not permitted

Get WatermarkX

If you’re looking for a clean, offline, and developer-friendly image watermarking solution, WatermarkX v1.0 is built to fit naturally into your workflow.

👉 Get WatermarkX on Gumroad 🔗 https://gum.new/gum/cmka62o2l001w04l42jmy3i9y

Final Thoughts

WatermarkX doesn’t try to replace large photo-editing suites. Instead, it focuses on doing one thing well: reliable, professional watermarking at scale.

If you value control, simplicity, and offline-first tools—this project is worth checking out.