🔒 Files never leave your device. All PDF processing happens 100% locally in your browser RAM.
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💧 Add Watermark

Overlay a custom text stamp on every page of your PDF locally. Secure, private, and customizable.

Drag & drop your file here, or browse

Supports PDF files. Processing occurs 100% locally.

Why use this Add Watermark tool?

This local client-side tool allows you to perform operations in your browser. Unlike traditional converters, we do not require you to upload files. This translates to speed, absolute security, and offline support.