Privatewatermarked on your device
Watermark your PDF
Overlay text or a logo on pages — processed locally.
PDF only · max 10MB · stays on your device
Document & PDF
Add PDF watermark online free
Mark drafts, protect branded PDFs, or stamp “Confidential” across pages. Overlay text or a logo with opacity and position controls — processed on your device.
How it works
Upload one PDF (max 10MB).
Add watermark text and/or a logo, then set opacity and position.
Optionally limit to selected pages, process, and download.
Why this tool
- Text and logo overlays
- Opacity and position controls
- Optional selected-pages only
- Runs locally in your browser
Frequently asked questions
Can I watermark only some pages?
Yes. Enable the selected-pages option and choose which pages receive the stamp.
Is Add Watermark private?
Yes. Watermarking runs on your device — nothing is uploaded.
Can I use a logo image?
Yes. Add a logo along with or instead of text, then tune opacity.