Batch Watermark Tool 100% Local
Add text or image watermarks to multiple images. Drag to position the watermark. All processing happens in your browser - no upload.
⚙️ Watermark Settings
Click or drag & drop images here
Supports JPG, PNG, WebP | Multiple images
❓ Frequently Asked Questions
How do I position the watermark?
Simply click and drag the blue box on the preview image. The watermark will be placed exactly where you drag it.
Can I batch process multiple images?
Yes! Upload multiple images, set your watermark once, then click "Apply Watermark to All Images". All images will get the same watermark at the same position.
How do I download all watermarked images?
After applying watermarks, click "Download All as ZIP" to download all watermarked images in a single ZIP file.
Are my images uploaded to a server?
No, absolutely not. All processing happens 100% locally in your browser using Canvas API.
What formats are supported?
Input: JPG, PNG, WebP. Output: PNG (with transparency preserved).
Can I remove existing watermarks?
No. Removing watermarks requires restoring lost pixel data, which is technically impossible to do perfectly.