Watermark a PDF
Stamp CONFIDENTIAL, DRAFT, your name or any text across every page, with adjustable size, angle and opacity. Free, private, no upload.
🔒 Your files stay on this device. Nothing is uploaded.
Drop files here or click to choose
Your files stay on this device. Nothing is uploaded.
Type the text, choose size, rotation, color and opacity, and every page gets the watermark. Because the file stays on your device, this is safe for contracts and personal documents.
How it works
- Drop a PDF.
- Type the watermark text and adjust the look.
- Apply and download.
This tool runs entirely in your browser. Your files are never uploaded, so there is no size limit and it works offline once loaded.
Frequently asked questions
Is it really free and private?
Yes. Everything runs in your browser with open-source code; nothing is uploaded. No account, no watermark, no file-size limit other than your device's memory.