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Add a text or logo watermark to a PDF for free. Adjust the size, rotation, opacity and position, preview it on the first page, then download a PDF with the watermark applied to every page. Runs entirely in your browser.

Add Watermark

Add a customizable text or image watermark to every page of a PDF. Your file never leaves your browser.

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Quick answer

Add a watermark to a PDF online free — stamp text like DRAFT or an image logo across one page or every page, in your browser. Built for agencies marking working drafts and businesses protecting shared documents. Processing is local; the file is never uploaded.

Drag & drop a PDF here

or click to browse files

PDF files only — up to 20MB each

How to add a watermark to a PDF

  1. Upload a PDF

    Drag and drop the PDF you want to stamp onto the tool.

  2. Set up the watermark

    Choose a text stamp such as DRAFT or an image logo, and pick where and how it appears — one page or every page.

  3. Apply and download

    Watermark the PDF in your browser and download the stamped copy.

Key features

Text or image watermark

Use a text stamp such as DRAFT or CONFIDENTIAL, or your own logo image.

Every page or one page

Apply the watermark across the whole document or only where you need it.

Position and styling control

Choose placement and appearance so the watermark reads clearly without burying the content.

Supported formats

  • Input: PDF (.pdf), one file; image watermark accepts common image formats
  • Output: PDF (.pdf) with the watermark applied

Privacy and security

Watermarking is done entirely in your browser. The PDF and your watermark image are processed on your device and the watermarked file is downloaded from your browser — nothing is uploaded or stored.

Limitations

  • One file at a time.
  • On rare documents with unusual content layering, the stamp position may need adjusting to read clearly.

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Frequently Asked Questions

Can I watermark every page of my PDF?

Yes. The watermark you configure is applied consistently to every page of your PDF before you download it.

Are my files uploaded to a server?

No. Everything runs entirely in your browser using pdf-lib and pdf.js, so your PDF and logo never leave your device.

Can I add both a text and an image watermark?

Yes — choose between text and image watermark modes. Adjust opacity and position so the watermark stays legible without hiding your document.

Does the download affect PDF quality?

No. The original pages are preserved and the watermark is drawn on top, so the underlying content stays unchanged.