Add a Watermark to PDF Documents

Last updated: October 23, 2026

Need to mark a document as DRAFT, CONFIDENTIAL, or SAMPLE before sharing? OneClickPDF's free watermark tool adds a text watermark to every page of your PDF — with full control over position, size, rotation, opacity, and color. No Adobe Acrobat needed, no account required.

The Problem

You need to share a document but make it clear that it's a draft, contains confidential information, or is a sample copy. Without a watermark, recipients might treat a draft as final or redistribute a confidential document. Adding watermarks in Word or design tools means converting back to PDF, which can break formatting.

How It Works

1

Open the Watermark tool

Go to OneClickPDF's Watermark PDF page.

2

Upload your PDF

Drop your document onto the upload zone.

3

Configure your watermark

Type your watermark text (DRAFT, CONFIDENTIAL, DO NOT COPY, or anything else). Choose the centre, a corner or a tiled pattern, and adjust size, rotation, opacity, and color to match your needs.

4

Preview and download

Preview the watermarked pages, then download. The watermark is embedded on every page of your PDF.

Watermark PDF

Add text or image watermarks to protect your documents.

Try It Free

Protect PDF

Password-protect a PDF with AES encryption (128-bit by default, 256-bit optional) and choose whether it can be printed or copied — in your browser.

Try It Free

Flatten PDF

Bake all annotations and form fields permanently into the PDF.

Try It Free

Frequently Asked Questions

Can I use my company logo as a watermark?
Not in the Watermark tool, which adds text only. Put the logo on a one-page PDF the same size as your pages and stamp it with PDF Overlay, which can repeat it on every page at the opacity you choose.
Can I make the watermark semi-transparent?
Yes. The opacity slider lets you make the watermark as subtle or prominent as you want — from barely visible to fully opaque.
Is the watermark on every page?
Yes. The watermark is applied consistently across all pages of the document.
Can the watermark be removed by recipients?
The watermark is embedded in the PDF content. While it's not encrypted protection, it clearly marks the document's status. For stronger protection, combine with password protection using our Protect PDF tool.

Protect your documents with professional watermarks in seconds. Whether it's a draft disclaimer, a confidentiality stamp, or your company name, OneClickPDF applies it consistently across every page — free and private in your browser.

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