Add Watermark to PDF — Free Online PDF Watermark Tool
Stamp every page of your PDF with a custom text watermark. Control the color, opacity, size, and angle. 100% free and processed locally for privacy.
Watermark PDF
Drag & Drop a PDF Here
or click to browse and select a PDF file
Only PDF files are supported
How it works: Upload a PDF, configure your watermark settings below, then click Apply Watermark on the file card.
Watermark Settings
CONFIDENTIAL
No PDF files available
Upload a PDF above to get started
About PDF Watermarks
Why Watermark a PDF?
Watermarks protect intellectual property, indicate document status (DRAFT, CONFIDENTIAL, DO NOT COPY), and deter unauthorized redistribution. They are a lightweight visual deterrent that does not prevent viewing but clearly communicates intent.
Common Watermark Use Cases
- Confidential Documents: Mark sensitive contracts, reports, or HR documents.
- Draft Versions: Clearly label work-in-progress before final approval.
- Sample/Preview: Distribute previews of paid content with a sample watermark.
- Copyright Notice: Embed your organization name or copyright text on every page.
Privacy & Security
All watermarking is performed on the server within your isolated session. Your documents are never shared with third parties, and files are automatically cleaned up after your session ends.