Add Watermark to PDF

Add a customizable text watermark to every page of your PDF. Adjust text, size, color, opacity, and rotation angle.

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Drop a PDF file here or click to browse

How to Watermark a PDF

Upload your PDF file
Enter your watermark text (e.g., "DRAFT", "CONFIDENTIAL", your name)
Adjust size, color, opacity, rotation, and position
Click Preview to see how it looks on the first page
Click Add Watermark & Download

Popular Watermark Uses

DRAFT — Mark documents as work-in-progress
CONFIDENTIAL — Label sensitive or private documents
SAMPLE — Mark preview copies of paid content
Your name/company — Brand documents shared externally
DO NOT COPY — Discourage unauthorized reproduction

Frequently Asked Questions

The tool uses pdf-lib.js to overlay text or image watermarks on each page of your PDF entirely within your browser. You customize the watermark text, opacity, rotation, and position, then download the watermarked file. No data is sent to any server.

Yes. Everything runs 100% client-side in your browser. Your PDF is never uploaded anywhere. This is safe for watermarking confidential documents like contracts, proposals, and internal reports.

Yes. You can set the watermark text, font size, color, opacity, and rotation angle. This lets you create subtle background marks for draft documents or more prominent watermarks for copyright protection.

Yes. You can choose to apply the watermark to all pages or select specific pages. This is useful when you want to skip the cover page or only mark certain sections of a document.

Text watermarks add negligible file size — just a few kilobytes total. Image watermarks may add more depending on the image size and the number of pages, but the increase is generally small since the same image is reused across pages.

Why watermarks still matter in 2026

Despite stronger digital-rights tooling, visible watermarks remain the most reliable way to mark a PDF as a draft, a confidential copy, a sample, or as belonging to a specific recipient. Watermarks deter casual misuse, signal status at a glance, and survive screenshotting and re-printing in a way that metadata-based protections do not.

Common watermark uses

Draft across the body of a document under review, removed before final distribution.
Confidential on internal financial reports, M&A documents, or legal correspondence.
Sample on previews of paid products such as ebooks or templates.
Recipient name for individually traceable copies of sensitive materials shared with named external parties.

Design choices that matter

Watermarks should be visible enough to be impossible to ignore but light enough not to interfere with reading. A diagonal placement at 45 degrees with 30% opacity is a well-tested default. Larger documents with image-heavy pages may need higher opacity to remain legible across pages with different backgrounds.

What watermarks do not do

A visible watermark is not encryption. Anyone with the file can still read every word. For sensitive material, combine a watermark with PDF password protection and avoid sharing originals when an exported flat-image version would suffice. For high-stakes documents, dynamic watermarks generated at the time of issue are the strongest deterrent — this tool produces a static watermark suitable for normal business use.

Add Watermark to PDF

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