Watermark PDF
PDF Tools✓ Free🔒 Private
Add a custom text or image watermark to every page of your PDF — free, browser-based. Set opacity, angle, position and font size. No upload needed.
Drop your PDF here or click to browse
Up to 100 MB · PDF only
iAbout Watermark PDF
Protect your PDF documents with professional watermarks applied directly in your browser. Add a diagonal "CONFIDENTIAL" or "DRAFT" text watermark in any color, opacity, and size, or overlay a logo image as a semi-transparent watermark. Customize the position (center, corners, or diagonal full-page), apply the watermark to all pages at once, and preview the result before downloading. 100% private — your file stays on your device.
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?FAQ
Can I set the watermark transparency?
Yes — the opacity slider lets you control transparency from 5% to 100%.
Can I use an image as a watermark?
Yes — upload a PNG (recommended, supports transparency) or JPG logo as the watermark.
Will the watermark be applied to all pages?
Yes — the watermark is automatically applied to every page in the PDF.
Is my PDF uploaded anywhere?
No. All processing is done locally in your browser. Your file never leaves your device.