What makes it different
- Your files never leave your device. Typical tools have to upload your photos and documents to a server to process them. Here the watermark is applied by your own browser — nothing is uploaded or stored, and it even keeps working offline once the page has loaded.
- No limits, no account. Watermark 5 or 500 files in one go, as often as you like, without registering.
- No branding of ours. Your results carry your watermark only.
- Images and PDFs together. Mix JPG, PNG, WebP, HEIC and PDF in the same batch with the same settings.
- Real control. Text or logo, opacity, any rotation angle, tiled patterns, and placement by preset, percentage or exact pixels from any corner.
- Fast on any connection. No upload or download wait — ideal on mobile data.
When a full editor makes more sense
If you need to retouch photos, design layouts or edit PDF text, a full editor is the right tool — see our step-by-step guides for the most popular apps. If what you need is to protect or brand finished files quickly, WatermarkOn is built for exactly that.
Typical online watermark tools vs WatermarkOn
| Typical online tools | WatermarkOn | |
|---|---|---|
| Where your files go | Uploaded to their servers | Nowhere: processed in your browser |
| Free usage | Often limited (files, size or tasks per day) | Unlimited |
| Account | Often required for more features | Never |
| Their logo on your result | Sometimes, on free plans | Never |
| Images and PDFs in one batch | Usually separate tools | Yes |
| Works offline after loading | No | Yes |