Photographers, client proofs
Tile a "PROOF" watermark over delivery JPEGs until invoice is paid. Browser-only, no proofs uploaded.
Add Watermark to Photos Online: Free, Batch, No Upload
Add text or image watermarks to your photos — entirely in your browser, no uploads.
Processed in your browser. Nothing uploaded.
Drop an image here or click to browse
JPEG, PNG, WebP, etc.
All processing happens in your browser. No files are uploaded.
What Is Image Watermarking?
Add Watermark is a free online tool that add text or image watermarks to your photos — entirely in your browser, no uploads. No files are uploaded — everything is processed locally on your device.
Add watermark to image online free with this tool that overlays a text label or logo onto a photograph to protect intellectual property, establish brand identity, or deter unauthorized use. This tool lets you add watermark to image online free with full control over text, font, size, color, opacity, position, and rotation. You can also tile the watermark across the entire image for comprehensive protection. The watermarking process is 100% client-side — your images are never uploaded to any server. Batch-process multiple photos at once with no file size limits or daily caps. Whether you are a photographer protecting proofs, a designer sharing previews, or a business branding marketing images, this browser-based watermark tool gets the job done privately and instantly.
Privacy guarantee: Add Watermark processes all files directly in your browser using WebAssembly. No data is uploaded to any server, no information is collected, and the tool works offline after loading. Unlimited usage with no signup, no watermarks, and no file size limits.
How to Use Add Watermark
Upload your images
Select or drag one or more images to watermark. JPEG, PNG, and WebP formats are supported. Batch processing available.
Customize watermark
Enter your text or upload a logo. Adjust font, size, color, opacity, position, rotation, and tiling options.
Apply and download
Click apply to overlay the watermark, preview the result, then download individual images or a batch ZIP file.
Why Use Our Image Watermark Tool?
100% client-side processing — no images uploaded to any server
Full customization: font, size, color, opacity, position, rotation, and tiling
Support for both text watermarks and logo/image overlays
Batch watermark multiple images at once with consistent settings
No file size limits, no daily caps, no watermarks on the watermark tool
Works on any modern browser — no software installation required
No signup needed — upload, customize, and download instantly
Advanced Guide: Add Watermark
Watermarks, Copyright, and What Actually Survives Re-Save
A watermark does not create copyright, copyright exists automatically when an original work is fixed. But under U.S. law, a watermark containing author or title information qualifies as Copyright Management Information (CMI) under 17 U.S.C. §1202, and removing it to conceal infringement triggers DMCA statutory damages of $2,500 to $25,000 per violation. Visible (pixel-burned) watermarks survive JPEG re-saves and platform recompression; invisible metadata watermarks usually do not.
- CMI legal basis: 17 U.S.C. §1202 — Defines watermark/author info as Copyright Management Information
- DMCA statutory damages: $2,500 – $25,000 — Per violation, for knowing CMI removal, 17 U.S.C. §1203(c)(3)(B)
- Willful CMI removal: Up to $500,000 + 5 yrs — First-offense criminal penalty under 17 U.S.C. §1204
- Common opacity range: 40 – 70% — Photographer guidance (DPS, SmartFrame), semi-transparent over image content, not flat backgrounds
- Survives JPEG re-save: Yes (visible) / No (metadata) — Pixel-burned watermarks survive recompression; EXIF/XMP usually stripped on upload
| Threat / Goal | Best Strategy | Why |
|---|---|---|
| Stop casual re-sharing | Corner watermark, 50% opacity | Low friction for honest viewers; deters basic theft |
| Stop AI-removal tools | Tiled across image content | Tile pattern is far harder to inpaint than a single corner mark |
| Brand reinforcement | Logo, lower-right, ~30% opacity | Recognizable without dominating the image |
| Client preview / proofs | Diagonal "PROOF" tile | Makes proof-status unmistakable until paid |
| Long-term provenance | Visible watermark + EXIF | Visible mark survives recompression; EXIF gives extra metadata when intact |
| Stock/product photography | Tile, semi-opaque | Prevents commercial reuse of preview-quality samples |
High-Intent Watermark Use Cases
Designers, preview mockups
Watermark portfolio shots and Behance previews so unauthorized reuse is obvious and DMCA-actionable.
E-commerce sellers
Add brand mark to product photos to discourage scraping by drop-shipping resellers on Etsy / eBay / Amazon.
Real-estate agents
Brand listing photos before MLS upload, agency logo on every image strengthens recall.
Stock contributors
Sample images on personal sites should be diagonally tiled to prevent commercial reuse without license.
Personal photo sharing
Drop a name + Instagram handle on travel photos before posting publicly.
Confidential drafts
Stamp "CONFIDENTIAL, DO NOT DISTRIBUTE" across internal screenshots and concept art.
Frequently Asked Questions
How do I add a watermark to an image online for free?
Upload your image, enter your watermark text or upload a logo, customize the appearance and position, then click apply. The watermarked image downloads instantly. No account or payment is required.
Can I batch watermark multiple images at once?
Yes. Upload multiple images and the same watermark settings are applied to all of them. Download each individually or as a combined ZIP archive. There is no limit on the number of images you can process.
Are my images kept private when adding watermarks?
Absolutely. The entire watermarking process runs in your browser using the HTML5 Canvas API. Your images never leave your device, making it safe for confidential proofs, client previews, and proprietary content.
Can I tile a watermark across the entire image?
Yes. The tiling option repeats your watermark text or logo in a grid pattern across the whole image, making it difficult to crop out. You can adjust the spacing, angle, and opacity of the tiled pattern. Tiled watermarks are far harder to remove with AI inpainting tools than corner-only marks.
Does adding a watermark protect my copyright?
Copyright exists automatically when an original work is fixed — a watermark does not create copyright. But under U.S. law a watermark with author or title information qualifies as Copyright Management Information (CMI) under 17 U.S.C. §1202, and knowingly removing CMI to conceal infringement triggers DMCA statutory damages of $2,500 to $25,000 per violation. So a watermark is more than just visual deterrence — it raises the legal cost of unauthorized reuse.
What opacity should I use for a watermark?
Photographers commonly use 40–70% opacity, semi-transparent, placed over image content rather than flat backgrounds. Lower than 30% disappears on busy images; higher than 80% obscures the photograph itself. For brand-reinforcement marks (logo in a corner) ~30% opacity is typical; for theft-deterrent tiled marks 50–60% is the sweet spot.
Will a watermark survive when someone re-saves or re-uploads the image?
Visible (pixel-burned) watermarks survive JPEG re-saves and social-media recompression because they are part of the image data itself. Invisible/metadata watermarks (EXIF, XMP) are usually stripped on upload to most platforms. If your goal is durable provenance, use a visible watermark — optionally combined with EXIF for extra metadata when it survives.
Can I add a watermark to JPG images for free, in batch?
Yes. Drop multiple JPG, PNG, or WebP files at once and the same watermark settings apply to each. You can download them individually or as a single ZIP. There is no batch-size cap, no per-image fee, no signup. The tool runs entirely in your browser, so you can watermark hundreds of images on a single page load.
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