altermypdf
altermypdf
Privacy & securityLicences

Add watermarkPreview

Stamp your own text or image across pages.

Drop a PDF to watermark

PDF, or images to add as pages

Opened on this device. Nothing is uploaded.

  • Never leaves your deviceProcessed in this browser tab. Nothing is uploaded, and a security policy blocks the page from sending data to other sites.
  • Checked before savingEvery result is re-opened and verified against what you asked for.
  • No account, no watermarkFree to use. Nothing is added to your files.

How to use Add watermark

  1. 1
    Open a PDF

    Your page changes from other tools are included.

  2. 2
    Design the watermark

    Text or an image, with size, colour, opacity, angle and position, once or repeated.

  3. 3
    Check and save

    Preview the first page, then save. Nothing is added unless you add it.