Image Watermark
Add text or logo watermark to images
- Processed client-side in your browser — files never leave your device.
- Free, with no signup, account, or usage limits.
- Works on any modern browser, including mobile.
About this tool
Image Watermark: Add text or logo watermark to images. Processing runs locally in your browser — your input is not uploaded to ThothBox.
How to use
- Open Image Watermark and add your file (upload or drag and drop).
- Set the options that match your goal.
- Run the action — processing happens in your browser.
- Download or copy the result when it is ready.
FAQ
What does Image Watermark do?
Add text or logo watermark to images.
Is Image Watermark private?
Yes for typical use: input is processed in your browser and is not uploaded to ThothBox.
Is Image Watermark free?
Yes. It is free to use with no signup required.
Are there file size limits for Image Watermark?
Practical limits depend on your device memory and browser, not a ThothBox server quota.
How do I use Image Watermark?
Open the Image Watermark tool, then open Image Watermark and add your file (upload or drag and drop).