DinoPDF
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Watermark

Add a text watermark to every page.

Drop your PDF here

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Up to 10 MB · 20 pages

How to add watermark to pdf

A watermark stamps text or an image across your pages to mark a document as a draft, confidential, or copyrighted. The mark becomes part of the page content.

  1. 1

    Choose your PDF

    Drop the document you want to watermark.

  2. 2

    Configure the mark

    Enter the text or choose an image, then set the position, size, rotation, and opacity.

  3. 3

    Download

    Click Watermark and the marked PDF downloads.

Your files never leave your device

Unlike most online PDF tools, this one uploads nothing. Everything runs inside your browser, so your document is never transmitted, never stored on a server, and never seen by anyone but you. Once the page has loaded you can disconnect from the internet entirely and the tool still works.

Frequently asked questions

Are my files uploaded anywhere?
No. Every operation runs inside your browser. The file is read into memory on your own device, processed there, and offered back to you as a download. It is never sent to a server, never stored, and never seen by anyone else. You can disconnect from the internet after the page loads and the tool still works.
Can the watermark be removed?
A watermark applied this way is drawn into the page content, so it cannot be toggled off in a reader. It is a visual deterrent, not encryption — someone determined can still edit it out with the right software.
Can I watermark only some pages?
Yes. Choose custom pages and give the page numbers or ranges you want marked.
Does the tool add its own watermark?
No. Nothing is added to your document except the watermark you configure.

Related tools

DinoPDF — every tool runs in your browser. Nothing is uploaded.