Add watermark to PDF
Stamp text or image watermarks on your PDF.
Process: application/pdf
Process ≤ 50.0 MB
About this tool
Stamp text or image watermarks on your PDF.
All processing happens in your browser. Your PDF never uploads to our servers. No account required, no usage limits.
Frequently asked questions
Is this PDF watermark tool free?
Yes, completely free with no usage limits and no watermark from us.
Can I add an image watermark?
Text watermarks are supported now. Image watermarks coming in a future update.
Will my PDF be uploaded to a server?
No. Watermark addition runs in your browser.
Can I customize opacity and position?
Yes, you can control opacity (10-100%), rotation (-90° to +90°), and choose from 5 positions (center, top-left, top-right, bottom-left, bottom-right).
Does it work offline?
Yes, after the first visit.