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Add Watermark to PDF

Stamp a custom text or logo onto your PDF, either centered once or tiled across the entire page. Everything runs securely in your browser—nothing is uploaded anywhere.

✓ Free✓ No signup✓ No upload✓ Works on iPhone, Android, Mac and Windows
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Click to choose a PDF or drag one here

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Text watermark

Image / logo watermark

Working...
WATERMARKED PDF
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How to Add a Watermark to a PDF File for Free, Without Signup

Protecting your intellectual property or marking a document's status (like "CONFIDENTIAL" or "DRAFT") is crucial. Our free PDF watermarking tool lets you instantly stamp custom text or your company logo onto every page of your document without needing expensive software.

How to Stamp Your PDF:

  1. Upload Your PDF: Click the upload box or drag and drop your document into the page.
  2. Choose Text or Image: Select the "Text watermark" tab to type custom text, or click "Image / logo watermark" to upload a transparent PNG logo.
  3. Adjust Appearance: Use the sliders to dial in the perfect opacity (transparency) so the watermark doesn't hide your content. You can also rotate the text/image (e.g., 45 degrees for a diagonal stamp).
  4. Select Placement: Choose "Centered" to place one large stamp in the middle of each page, or "Tiled" to create a repeating security pattern across the entire background.
  5. Process & Download: Click "Add watermark" and download your newly protected file instantly.

100% Secure & Private Processing

Many online tools upload your confidential documents to cloud servers to add watermarks. Our tool is different. It uses advanced browser technology to process the file locally on your own computer. Your data is never uploaded, stored, or seen by anyone else. It's completely private and secure.

Use PDF Watermark on iPhone, Android, Mac and Windows

Choose your text or logo on any device. On iPhone and Android, pick the PDF and the logo from Files or your photo library. On a Mac or Windows PC, drag them in. The watermarked PDF is saved to your Downloads folder, and your original file stays unchanged.

When to Use It

Marking files DRAFT, CONFIDENTIAL, SAMPLE or COPY before sharing, adding your brand or logo to portfolios and proposals, and adding a copyright notice to material you distribute.

Tips for Better Results

  • Subtle but readable works best. An opacity of roughly 20-40% keeps the text readable and the stamp visible.
  • A 45-degree diagonal is the classic look for DRAFT and CONFIDENTIAL.
  • Centered suits a status mark. Tiled covers the page and is harder to crop out.
  • For logos, use a PNG with a transparent background so no white box appears.
  • Check one text-heavy page of the result before you send it, to confirm it stays readable.

Related guide: How to Add a Watermark to a PDF

Frequently Asked Questions (FAQs)

Does editpdf.tools add its own watermark to my PDF?

No. The only watermark on your file is the one you choose, with your own text or logo.

Can I remove a watermark after saving?

The watermark is stamped into the saved PDF, so keep your original file if you may need the version without it.

What is the difference between a watermark and hiding information?

A watermark labels a document. It does not hide what is underneath. If something must not be seen, remove it from the document instead of covering it.

Which opacity should I use?

Start around 30% and adjust until the page stays readable.

Can the watermark be removed later?

It is added to the page itself, so it cannot be casually deleted. Keep your original unwatermarked file for yourself.

Can I add a watermark to a PDF for free without signing up?

Yes. It is free, there is no account or signup, and it works on iPhone, Android, Mac and Windows.

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