You can add a text or image watermark to a PDF for free in under a minute using MergePDF.Pro in your browser, no software or account needed. This is the fastest way to mark a document as a draft, add a company logo, or label a file as confidential before sharing it.

This guide covers how to add a watermark to every page of a PDF, and the settings that control how it looks.

Key Takeaways

  • MergePDF.Pro adds a watermark to a PDF for free in the browser, in under a minute.
  • You can use either a text watermark (like "DRAFT" or "CONFIDENTIAL") or upload an image, such as a logo.
  • Watermarks apply to every page of the document automatically.
  • Adding a watermark does not remove or replace the original content, it overlays on top of it.

How to Add a Watermark to a PDF

Step 1: Open the Watermark PDF Tool

Go to mergepdf.pro/watermark-pdf.

Step 2: Upload Your PDF

Click Upload OR Drag Files and select the file you want to watermark.

Step 3: Choose Text or Image

Enter the text you want (such as "DRAFT" or "SAMPLE"), or upload an image file like a company logo.

Step 4: Adjust Position and Opacity

Set where the watermark appears on the page and how transparent it is, so it is visible without blocking the content underneath.

Step 5: Apply and Download

Click Watermark PDF, then download the file. Every page now shows the watermark.


Common Uses for a PDF Watermark

SituationWatermark Type
Sharing an unfinished documentText watermark, e.g. "DRAFT"
Protecting sensitive information before sharingText watermark, e.g. "CONFIDENTIAL"
Branding a document with your companyImage watermark, your logo
Marking a preview or sample copyText watermark, e.g. "SAMPLE"

Frequently Asked Questions

Can I remove a watermark after adding it?

Not from the same file, since the watermark is merged into the page. Keep your original, unwatermarked PDF as a separate file if you might need a clean copy later.

Does a watermark cover up the document's content?

No, if the opacity is set reasonably. A watermark is meant to be visible but not block reading the underlying text.

Can I watermark only some pages instead of the whole document?

MergePDF.Pro applies the watermark to every page for consistency. If you only want certain pages marked, split the PDF first using Split PDF, watermark just that section, then merge it back if needed.

What image formats work for a logo watermark?

Standard image formats like PNG and JPG work well. PNG is usually better for logos since it supports transparency.

Is it safe to upload a confidential document just to add a watermark?

Yes. Files are transferred over an encrypted connection and deleted automatically from the server after processing.


Conclusion

Adding a watermark is a quick way to label a document as a draft, protect it with a confidentiality notice, or brand it with your logo. MergePDF.Pro does it for free, in under a minute, in your browser.

Ready to watermark your PDF? Open MergePDF.Pro and upload your file now.