Batch Image Watermark Tool
Click or drag images here
JPG, PNG, WebP - multiple files supported
~16 watermarks visible per image
Protect your photos or brand your images without sending files to a third-party server. Upload as many images as you need, type your watermark text, choose the position and style, and download a ZIP of all watermarked images. Everything runs in your browser - no upload, no account, no limit.
How to use this tool
- 1Click 'Choose images' or drag and drop your photos. You can select multiple files at once - JPG, PNG, and WebP are all supported.
- 2Type your watermark text. This could be your name, website, brand, or copyright notice such as '© 2026 Your Name'.
- 3Choose the position: corners or center. Bottom-right is the most common for photography watermarks.
- 4Adjust the opacity (how transparent the watermark is), font size, and color to suit your images.
- 5Check the live preview on the first image, then click 'Download ZIP' to get all watermarked images in one file.
Example
Upload 20 property photos. Watermark text: 'Smith & Co Realty | 555-0123'. Position: bottom-right. Opacity: 60%. Color: white. Font size: 28px. Download ZIP and share directly to the listing portal. Total time: under a minute.
Upload 50 preview images. Watermark: '© Jane Doe Photography'. Position: center. Opacity: 25% for subtle protection. Font size: 36px. Color: white. Client can view images in the gallery but cannot use them without the license.
Common use cases
- Photographers adding copyright notices to proof or preview images before client approval
- Real estate agents branding listing photos with agency name and contact number
- Restaurant owners watermarking menu photos before posting to Tripadvisor or delivery platforms
- E-commerce sellers adding brand text to product images before uploading to marketplaces
- Social media managers marking content with a handle or website before publishing
- Small businesses protecting marketing images from being reused without credit
Common mistakes
- Setting opacity too high - a solid black or white watermark can ruin the image. Start at 40-60% and adjust using the preview.
- Placing the watermark in a corner that is easily cropped - center placement with lower opacity is harder to remove.
- Using a font size too small to read at thumbnail size - for social media previews, go larger than you think you need.
- Watermarking original files and overwriting them - always keep the originals. The ZIP only contains the watermarked copies.
Frequently asked questions
Are my images uploaded to a server?
No. All processing happens entirely in your browser using the Canvas API. Your images never leave your device. No file size limits apply beyond your browser's memory.
What image formats are supported?
JPG, PNG, and WebP. Watermarked images are downloaded as PNG to preserve quality and support transparency.
Can I add a logo image as a watermark instead of text?
This tool adds text watermarks. For a logo watermark, position your logo over the image in a design tool such as Canva or Photoshop, then export.
How many images can I watermark at once?
There is no hard limit, but very large batches (50+ high-resolution images) may use significant browser memory. If your browser slows down, process in smaller batches.
Will the watermark stop people from using my images?
A watermark deters casual copying and clearly establishes ownership, but it is not technically impossible to remove. Center placement at moderate opacity is harder to remove than a corner watermark. For legal protection, register your copyright where relevant.
Can I use this on a mobile phone?
Yes. The tool works on modern iOS and Android browsers. Uploading multiple images at once may be slower on mobile due to memory constraints.
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