# Watermark PDF online

> Add a diagonal text watermark to every PDF page online for free. Private — no upload, no account.

Canonical: https://mypdf.space/watermark-pdf
Last updated: 2026-10-26

## Answer

Drop a PDF into the tool below, set your watermark text, and download. Useful for DRAFT or CONFIDENTIAL stamps. Processing stays in your browser.

## Limits

- Text watermark overlay — not a invisible forensic watermark.
- Does not replace proper redaction of sensitive content.

## FAQ

### Can I watermark a PDF for free?

Yes. Add text across pages here with no account or watermark on the tool itself.

### Does watermark upload my PDF?

No. Stamping runs in your browser.

### Should I watermark instead of redact?

No. Watermarks label a file; they do not remove secrets. Use Redact for permanent removal.

## Related

- [Watermark PDF online](https://mypdf.space/tools/watermark)
- [Redact PDF](https://mypdf.space/redact-pdf)
- [Confidential Send](https://mypdf.space/tools/workflow)
- [Password-protect PDF](https://mypdf.space/password-protect-pdf)