Add Watermark to PDF Online
Add a watermark to PDF online for free and protect or label your documents in seconds. Stamp DRAFT, CONFIDENTIAL, SAMPLE or your brand name across every page, with full control over size, color, opacity and rotation. Choose a single centered mark or a tiled pattern — all applied locally in your browser.
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How to watermark pdf online for free
- 1
Select or drop the PDF you want to watermark.
- 2
Type your watermark text and pick a style: centered or tiled across the page.
- 3
Fine-tune size, color, opacity and rotation with the live preview.
- 4
Click “Add Watermark” and download the stamped PDF.
Why use this watermark pdf tool?
Centered or tiled
Place one bold watermark in the middle of every page, or tile it in a repeating diagonal pattern for stronger coverage.
Full style control
Adjust text size, rotation angle, color and opacity until the watermark is exactly as subtle or loud as you need.
Protect before sharing
Mark drafts, review copies and confidential files so everyone knows their status at a glance.
Private processing
Watermarks are applied on your device. Sensitive documents never get uploaded to any server.