💧 Watermark Image Online Free: Protect Your Copyright

Add copyright text or your logo to hundreds of photos in seconds. The ultimate tool for photographers and artists.

🔒 100% Private

⚡ No Uploads

⚖️ Legally Valid

📱 Mobile Ready

📋 Setup

How to Copyright Protect Your Photos

Simple process to prevent content theft.

📂

Upload Images

Drag a photo or an entire batch. No quantity limits.

✍️

Design Your Stamp

Choose 'Text' to write your name or 'Image' to upload your transparent PNG logo.

💾

Apply & Download

Position the mark and download protected versions instantly.

Branding Studio for Photographers

Professional tools for a solid visual identity.

✍️

Dynamic Text

Choose from hundreds of fonts, adjust color, size, and drop shadow to make your signature pop.

🖼️

Corporate Logo

Import your logo in PNG. We adjust transparency automatically.

💠

Tile Mode

Repeat your watermark across the entire image (Stock Photo style) for maximum protection.

📦

Batch Editing

Have 50 session photos? Watermark them all at once with a single click. Save hours.

🔐

Total Security

Your original photos never leave your computer. No one sees them before you do.

🎨

Total Control

Adjust opacity, rotation, and margin with millimeter precision.

Intellectual Property Protection

Why and how to mark your digital works.

👁️

Visual Deterrence

A visible watermark is the first line of defense against unauthorized use. While not foolproof against expert editors, it disincentivizes 99% of casual theft on social media, where removing a mark requires effort the average user is unwilling to make.

💡

Prevents mass 'right-click + save'.

🛡️

Asset Privacy: Dune Safe™

To mark private or exclusive photos, security is key. Our WASM technology applies marks directly in your browser. This means original high-res files are never sent to the cloud, protecting your unreleased work from leaks.

💡

Your unreleased work never touches the internet.

📢

Branding and Marketing

Beyond protection, a watermark is free advertising. If your image goes viral, your name, website, or Instagram handle travels with it. It's crucial to place it legibly but unobtrusively, typically in a corner at 50% opacity.

💡

Turn every shared image into a business card.

Format Comparison

Choose the right format for your use case

Watermark Type	Ideal Format	Recommended Use
🔤 Simple Text	System Fonts	✅	Fast	Freelance Photographers
🎨 Logo	Transparent PNG	✅	Professional	Brands & Companies
💠 Mosaic (Tiled)	Repeating Pattern	✅	Max Security	Stock Sales / Samples
©️ Copyright	© Symbol + Year	✅	Legal	Registered Works

Watermarking FAQ

Quick answers about the tool

Can I remove a watermark I already added?

If you've already saved the image and closed the browser, no. The watermark is 'fused' with the photo pixels. That's why we always recommend saving the result as a new file (e.g., 'photo_marked.jpg') and keeping the original clean.

How do I make my logo have a transparent background?

You must use a PNG file with an alpha channel. If you upload a JPG, it will have a white box around it. You can use online tools to remove your logo's background before uploading it here.

Where is the best place to position the mark?

For maximum protection, in the center or tiled over the subject. For aesthetics and branding, in a bottom corner with some padding. Our tool lets you test all positions instantly.

Can I process 100 photos at once?

Yes. Our 'Batch Editing' feature is very powerful. Upload 100 photos, design the watermark on one, and it applies identically to the remaining 99. Then download them all in a ZIP.

Is a watermark legally valid?

Yes, it constitutes proof of authorship and a declaration of reserved rights. Deliberately removing a digital watermark is a specific offense in many intellectual property laws.

Does it affect photo quality?

Minimally. We recompress the image with high quality (90-95%) to fuse the watermark. Visually it is identical to the original, except for the stamp you added.

Of course. You can type them directly or copy and paste them into the text field. Our editor supports all standard Unicode characters.

Is it free for commercial use?

Totally. You can use DuneTools to mark photos for your online store, professional portfolio, or client deliverables at no cost.