Why should you use a local watermark tool?
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No upload, privacy-safe
All watermarking happens locally in your browser, so your images are never uploaded and your privacy is protected.
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Fast watermarking
Uses Canvas dual-layer rendering to add watermarks quickly for a smooth editing experience.
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Flexible watermark control
Supports text and image watermarks with adjustable opacity, angle and position, including tiled and custom layouts.
Frequently Asked Questions
What types of watermarks are supported?
Both text and image watermarks are supported. You can customize font, size and color for text, or upload a logo image for picture watermarks.
Can I adjust the watermark position?
Yes. You can choose centered, tiled or custom positioning. Tiled watermarks are great for copyright protection.
Will the watermark affect image quality?
No. We use Canvas rendering to add watermarks while keeping the original image quality. You can control how prominent the watermark looks via the opacity slider.