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PDF Watermark Tool
Add a text watermark to your PDF.
Upload a PDF, type your watermark text, and stamp it across every page instantly.
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Upload PDF
Every Page Stamped
Watermark applies to all pages, no page limit.
Adjustable Opacity
Control how subtle or bold the watermark appears.
Free & Unlimited
No signup, no watermarks on the tool itself, no page limits.
How to add a watermark to a PDF
- Upload your PDF file.
- Type the watermark text and adjust opacity/font size if needed.
- Click Add Watermark and download your watermarked PDF.
Frequently Asked Questions
Yes. The watermark text is stamped diagonally across the center of every page in the document, with no page limit.
Yes. Use the opacity setting to make the watermark subtle (low opacity) or bold and clearly visible (high opacity).
Yes. 100% free — no account required, no usage limits, no page limits.