Add Watermark to PDF Online — Protect Documents Free
Protect intellectual property and brand proprietary contracts by applying custom text or image watermarks across PDF documents. Stamp confidential notices, draft labels, copyright markers, or company logos with adjustable opacity, angle, and positioning. Processing runs entirely in browser memory so sensitive agreements and financial paperwork never leave your device.
Click to choose a PDF file to watermark
How to Use
- 1Upload the PDF document requiring protection.
- 2Enter your watermark text and select font color and opacity.
- 3Download your securely watermarked PDF file.
Common Use Cases
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Marking unreleased contracts as 'DRAFT' or 'FOR REVIEW ONLY'.
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Stamping proprietary whitepapers and pricing proposals with client names.
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Deterring unauthorized redistribution of academic course materials.
Frequently Asked Questions
Can recipients easily erase the watermark?
Can I customize the opacity of the stamp?
Are sensitive business contracts uploaded to your servers?
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