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Add a watermark to a PDF or image
Stamp text like “Confidential” or “Draft” across your files — set color, size, opacity and style. Free and private.
How to add watermark
- Select or drop your PDFs or images.
- Type your watermark text and set style, color, size and opacity.
- Click “Process” to stamp them in your browser.
- Download your watermarked files (or a ZIP of them all).
✔ No file uploads
✔ Free & unlimited
✔ No watermark
Frequently asked questions
Can I watermark several files at once?
Yes. Add multiple PDFs or images and they're all watermarked in one batch, then downloaded together as a ZIP.
Can I change the watermark's opacity and angle?
Yes. Pick a diagonal or tiled style and adjust the opacity, size and color to taste.
Does it work on both PDFs and photos?
It does. PDFs get a vector text stamp on every page; images get the text drawn on and re-exported.
Is my file uploaded?
No. Watermarking happens entirely in your browser, so your files stay on your device.