Watermark PDF
Add text watermarks with a live preview, page-range targeting, opacity, rotation, size and position controls.
What is Watermark PDF?
Watermarks can label drafts, confidential documents, samples or internal copies.
How to use this tool
- Select the required file or files.
- Review the available options and choose settings that match your document.
- Run the tool and inspect the generated result before replacing any original file.
Why use it?
Choose short text, opacity and angle so the watermark remains visible without hiding the underlying content.
Privacy and local processing
The tool is designed to perform its main document operation inside your browser. Your browser may still load the JavaScript libraries required to run the feature from public CDNs. Avoid processing highly sensitive material on any device or network you do not trust.
Important limitations
A watermark is a visual deterrent, not access control or encryption.
Browser-based PDF processing is convenient, but very large documents can use substantial memory. If a file fails, try a smaller document, close memory-heavy tabs, or use a desktop application for production-critical work.
Frequently asked questions
Is this Watermark PDF tool free to use?
The page is designed as a free browser tool. Your internet provider or device data charges can still apply.
Are my files uploaded to a server?
The main processing logic in this page runs in the browser. The page does load third-party JavaScript libraries from CDNs, so review the site privacy policy before using confidential documents.
Will the output look exactly like the original?
It depends on the operation and the PDF structure. Simple documents generally work best. Always verify the output before relying on it.
Can I use the result for official or legal documents?
You can use the generated file where appropriate, but this website does not validate legal sufficiency, digital-signature status, archival compliance or regulatory acceptance.