Watermark Tool
Add text or logo watermarks to photos in batch. No upload needed. Download all as ZIP.
Preview
Drop images here or click to browse
JPG, PNG, WebP — up to 20 files
About Watermark Tool
The Watermark Tool lets you add text or logo watermarks to photos entirely in your browser using the Canvas API. Batch-process up to 20 images at once. Control position, opacity, size, padding, and tile mode. Nothing is ever uploaded — all processing is local and instant.
Use Cases
- →Protect photos before sharing on social media or stock sites
- →Brand product images with your logo in bulk before publishing
- →Add copyright notice to portfolio or press photos
- →Create tiled watermarks on sensitive documents to prevent unauthorized use
Tips
- ✓Use PNG logos with transparent background for the cleanest results
- ✓Set opacity between 40–60% for a professional, non-intrusive look
- ✓Use Tile mode to make watermarks much harder to crop out
- ✓Bottom-right corner is the most recognized and common watermark position
Frequently Asked Questions
No. All processing happens locally in your browser using the Canvas API. Your files never leave your device.
JPG, PNG, and WebP. The output format matches the input — JPG in, JPG out. PNG transparency is preserved.
Yes. Switch to the Image / Logo tab, upload any PNG or image file, then adjust size (5–50% of image width) and opacity.
Tile mode repeats the watermark across the entire image in a grid pattern, making it much harder to crop out.
Up to 20 images per batch. Each is processed individually and can be downloaded separately or all at once as a ZIP file.
Padding sets the distance in pixels between the watermark and the edge of the image. Applies to all 9 corner/edge positions.