✏️ Edit · Free

Add Watermark to PDF Online Free

Stamp custom text — DRAFT, CONFIDENTIAL, your company name — on every page of a PDF. Control font size, color, opacity, and position. No signup, no server uploads.

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Drop your PDF here

or click to browse your files

PDF files only · Processed locally in your browser

How to Add a Watermark to a PDF

1

Upload your PDF

Click "Select PDF File" or drag and drop your PDF into the upload zone. The file is processed entirely in your browser — no data is sent to any server.

2

Configure your watermark

Enter your watermark text (e.g. DRAFT, CONFIDENTIAL), then adjust the font size, color, opacity, and position. A live preview shows exactly how the watermark will look on the page.

3

Click "Apply Watermark"

The watermark is drawn on every page of your PDF using your chosen settings. The diagonal center position automatically rotates the text 45° for a classic watermark look.

4

Download your PDF

Click "Download Watermarked PDF" to save the result. The original file is never modified.

Frequently Asked Questions

The watermark is drawn directly onto the page content — it is not a separate layer. Once applied, it becomes part of the page and cannot be removed by this tool. If you need a reversible watermark, keep a copy of your original PDF before applying.
Yes — the watermark is applied to all pages in the document. The position and appearance is consistent across every page. Each page's watermark is centered relative to that specific page's dimensions, so it works correctly even if pages have different sizes.
Yes, completely. All processing runs locally in your web browser using JavaScript and the pdf-lib library. Your file is never uploaded to any server and nothing is stored or transmitted. Your documents remain entirely private on your device.

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