About Add Watermark
Hemiley’s Add Watermark tool overlays diagonal text so you can brand or protect images before sharing.
Set watermark text and opacity, preview, then download. All processing happens in your browser on Hemiley — your files are never uploaded to our servers.
Key Features of Add Watermark
- Custom watermark text
- Adjustable opacity
- Diagonal overlay for clear branding
- Live preview
- Private browser processing
How to Use Add Watermark
- Upload the image to protect.
- Enter watermark text and set opacity.
- Preview the watermarked photo.
- Download the result.
Looking for more image tools? Explore the Image Tools hub or the full free online tools directory.
Frequently Asked Questions
Is Add Watermark free on Hemiley?
Yes. Add Watermark is completely free, with no sign-up, watermark, or payment required.
Is my image uploaded when I use Add Watermark?
All processing happens in your browser on Hemiley — your files are never uploaded to our servers.
What devices work with Add Watermark?
Add Watermark works in modern browsers on desktop, laptop, tablet, and phone — no app install needed.






