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Pditor

Add a watermark to PDF

Type the text (DRAFT, CONFIDENTIAL, your client's name) and we stamp it diagonally across every page. Adjustable opacity so it's visible but not in the reader's way.

Stamped preview

Add a PDF below to see the watermark on your first page.

Produced by the same engine that makes your download — this is the real result, not a mock-up.

How to

  1. 01

    Upload your PDF

    Drop in the document you want to stamp.

  2. 02

    Set your watermark text

    Type the text — DRAFT, CONFIDENTIAL, a client name — and adjust opacity, rotation, and size.

  3. 03

    Download the watermarked PDF

    Your text is stamped diagonally across every page.

Why Pditor

Mark status and ownership

Stamp DRAFT, CONFIDENTIAL, or a client name across every page in one pass.

Tune the look

Control opacity, rotation, and font size so the watermark reads without hiding the content.

FAQ

How do I add a watermark to a PDF?+

Upload the PDF, type your watermark text, and it's stamped diagonally across every page.

Can I change how the watermark looks?+

Yes — adjust the opacity, rotation, and font size.

Is it free?+

Yes — the free tier covers 5 runs a day with no account. Pro removes the daily limit.

Are my files private?+

Files are processed on our servers and auto-deleted within an hour on the free tier (up to 24 hours on Pro).