Watermark
Add a text or image watermark to a PDF.
Drop a PDF here or click to browse
PDF up to your plan limit
Add a watermark to PDF files right in your browser. Stamp custom text like CONFIDENTIAL, DRAFT, or your company name across every page, with full control over opacity and position.
How it works
- 1
Upload your PDF
Select or drag the PDF you want to mark onto the page to load it instantly.
- 2
Set text and style
Type your watermark text and adjust the opacity and placement until it looks exactly right.
- 3
Apply and download
Run the tool and download your watermarked PDF in a single click.
Why use this tool
Private and secure
The tool runs entirely in your browser, so your files never leave your device and are never uploaded to any server.
Fast results
Watermarks are applied locally in seconds, with no upload wait or processing queue.
Flexible stamping
Use any custom text for brand or confidential stamps, and fine-tune opacity and placement to fit each document.
No install needed
Everything works in your web browser, with nothing to download, register, or set up.
Frequently asked questions
How do I add a watermark to a PDF?
Upload your file, type the text you want, adjust the opacity and position, then click apply to download the watermarked PDF. The whole process happens in your browser.
Can I set the transparency and position of the watermark?
Yes. You can adjust the opacity so the text is bold or subtle, and choose where it appears on the page.
Is the watermark applied to all pages?
Yes, the watermark is stamped across every page of the document by default.
Are my files uploaded to a server?
No. Everything runs locally in your browser, so your files never leave your device.
Can I add a watermark to PDF documents for free?
Yes, you can add a watermark to PDF files at no cost, with no account or installation required.