Watermark PDF documents online for free. Add text overlays, logos, and security stamps while preserving searchable text. 100% private.
Open MediaWatermark Pro →Add professional watermarks to your PDF documents without destroying text searchability. Our native PDF engine preserves the document structure while adding overlay or underlay watermarks. Perfect for contracts, proposals, reports, and confidential documents. Choose between visible text stamps, logo overlays, or invisible digital watermarks.
All processing runs inside your browser memory using WebAssembly and WebGPU. No servers. No storage.
Drag folders or ZIP files. Design once. Export a complete protected ZIP instantly.
Local TensorFlow.js detects faces and positions watermarks intelligently.
Yes! Our engine uses native PDF stamping — your text stays fully searchable and the document isn't rasterized.
Yes, use our Template Gallery with pre-built DRAFT, CONFIDENTIAL, and DO NOT COPY templates.
Yes, all processing happens locally so there are no upload limits.
Drag and drop your photos, PDFs, or videos. Nothing is ever uploaded to a server.
Apply custom text, upload logos, or generate stock-photo style grid patterns instantly.
Click export. Everything is processed locally on your device in seconds via WebGPU.
MediaWatermark Pro is part of the B2R ecosystem — building privacy-first digital infrastructure.