Watermark & Overlay
Text Watermark
Add text watermarks to images with full control over font, size, color, opacity, rotation, and position. Apply tiled watermark patterns that cover the entire image or place a single watermark in a specific location. Batch process for bulk protection.
Features
- Custom font, size, color, and opacity
- Tiled pattern or single-position placement
- Rotation angle control
- Text stroke and shadow effects
- Batch apply to entire image collections
What you can do
- Protect portfolio images with a copyright watermark
- Add proof watermarks to client review galleries
- Brand images with company name before sharing externally
- Apply date or version stamps to documentation screenshots
Self-hosted. Your images never leave your network.
SnapOtter runs entirely on your own infrastructure. Images processed with Text Watermark are never uploaded to third-party servers. Deploy a single Docker container and process images with full privacy, no watermarks, and no usage limits. Open source under AGPL-3.0.
Frequently asked questions
- How do I add a watermark that covers the entire image?
- Use the tiled pattern mode. It repeats your watermark text across the entire image in a diagonal pattern. Adjust the spacing and opacity to balance protection with visibility of the underlying image.
- What opacity should I use for a watermark?
- 15-30% opacity is typical for proof watermarks that should be visible but not distracting. For stronger copyright protection, use 40-60%. Too high and the image becomes unusable for review; too low and the watermark is easily removed.
- Can I batch watermark an entire folder of images?
- Yes. Set your watermark text and style once, then upload all images. They will all receive the same watermark treatment in a single batch operation.
Ready to try Text Watermark?
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