Use this free bulk watermark tool to add your logo or text to hundreds of photos at once. Everything happens inside your browser, so your images are never uploaded to any server. Choose your photos, set the position and opacity, and download them all in one ZIP file.
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Watermark settings
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🔒 Photos are processed on your device. Nothing is uploaded to any server.
How to Bulk Watermark Your Photos
- Select your photos. You can pick hundreds at once.
- Choose a text watermark, or upload your logo as a transparent PNG.
- Set the position, size, opacity and margin.
- Check the live preview and step through a few photos.
- Click the download button to get every watermarked photo in one ZIP file.
Bulk Watermark Best Practices
- Use a transparent PNG logo, so no white box appears around it.
- Keep opacity between 40% and 60%. The mark stays visible without ruining the photo.
- Pick a corner for portfolios, and a tiled pattern for client previews.
- Size logos at 15% to 25% of the photo width for a balanced look.
- Always keep your originals. Watermark copies, never your master files.
A watermark helps people recognize your work and discourages casual reuse. However, it does not replace copyright itself. In India, copyright protects your photos from the moment you create them, and the Copyright Office of India explains registration.
Product photographers can pair this with our guide on how to shoot glossy products in a matte look. Consistent watermarks also strengthen your personal branding across every platform.
When to Use a Bulk Watermark
- Client proofs: share previews before payment without giving away final files.
- Product catalogs: brand every product photo in one pass.
- Event photography: watermark hundreds of wedding or festival photos in minutes.
- Social media posts: keep your name on photos that get reshared.
Bulk Watermark FAQ
Are my photos uploaded to a server?
No. All processing happens on your own device, in your browser. Your photos never leave your computer or phone.
How many photos can I watermark at once?
There is no fixed limit. Most laptops comfortably handle a hundred or more photos in one batch. For very large batches, split them into smaller groups.
Will watermarking reduce my photo quality?
The tool keeps the original resolution. JPG output uses 92% quality by default, which looks identical for most photos. Choose PNG for lossless output.
Which image formats are supported?
JPG, PNG and WebP work in all modern browsers. HEIC photos from iPhones may not open in every browser, so convert them to JPG first.
Can this tool remove watermarks?
No. It only adds watermarks. Removing watermarks from other people's images can infringe their copyright.
Protect Your Work in Minutes
A bulk watermark takes minutes instead of hours in a photo editor. If you also record videos, try our free teleprompter for PC for smoother takes.