Watermark PDF
Add a text watermark to your PDF in seconds. Stamp a label like CONFIDENTIAL, DRAFT or COPY across every page at once to protect your documents and mark their source. With Haven PDF you can adjust the watermark’s opacity, size, angle and color exactly the way you want, see the result in a live preview and download it with one click.
Most importantly, everything happens entirely in your browser, on your device. Your PDFs are never uploaded, stored or tracked. That means you can safely watermark sensitive files like contracts, proposals or reports.
No sign-up, no payment, no install. Haven PDF is free and can be installed on your device to work offline (PWA). Apply the same watermark to a one-page document or a file with hundreds of pages — there is no page limit.
How to
- Choose your PDF. Drag and drop or browse to open the PDF file you want to watermark.
- Set up the watermark. Type your text (e.g. CONFIDENTIAL) and adjust opacity, size, angle and color.
- Download. Save the watermarked PDF to your device with one click.
Frequently asked questions
- Are my files uploaded to a server when adding a watermark?
- No. Watermarking happens entirely in your browser; your PDFs never leave your device.
- Can I customize how the watermark looks?
- Yes. You can change the watermark text, opacity, size, angle and color to fit your needs.
- Is it free?
- Yes, completely free. No sign-up, no payment, no install required.
- Is the watermark added to every page?
- Yes. Your chosen watermark is applied to all pages of the document at once.
- How do I add a watermark to a PDF?
- Open your PDF, type your watermark text (e.g. CONFIDENTIAL), adjust opacity, size, angle and color, then download the watermarked PDF — all in your browser, with no upload.