Watermark PDF

Drop a PDF

Add a watermark to every page

Stamp CONFIDENTIAL — or DRAFT, or your company name — diagonally across every page of a PDF. Set the size, angle, opacity and colour for a classic semi-transparent stamp, preview it, and download. The document is watermarked on your device and never uploaded.

A diagonal stamp is the standard way to mark sensitive or not-yet-final documents before you share them.

How to add a confidential watermark to a pdf

  1. Drop your PDF and type CONFIDENTIAL as the watermark text.
  2. Set the angle for a diagonal stamp and adjust size and opacity.
  3. Download the watermarked PDF.

Frequently asked questions

Can I put the stamp diagonally across the page?

Yes — the angle slider tilts the text for a classic diagonal CONFIDENTIAL stamp on every page.

Can I use my own text instead?

Yes, type any text — DRAFT, a name, a date — up to 40 characters.

Is my PDF uploaded to be stamped?

No. The watermark is drawn on your device.

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