Brand thousands of legal contracts, invoices, and high-resolution photos directly in your browser. Fast, free, and completely confidential.
Zero cloud uploads • High-throughput multi-threaded browser processing
Upload a watermark logo on the left to begin
Changes will reflect instantly on this preview canvas before batch processing.
Choose a folder or select hundreds of PDFs and images simultaneously.
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Compare the privacy and performance of our client-side architecture against typical cloud converters.
Files are opened directly inside your web browser's virtual memory sandbox. Not a single byte is uploaded to AWS, Google Cloud, or third-party storage.
Forget waiting in cloud conversion queues or suffering slow upload bandwidth. WaterMatrix utilizes your device's native CPU cores for maximum batch throughput.
Have deep folder archives? WaterMatrix remembers your directory paths and rebuilds them inside the downloaded ZIP file automatically.
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How corporate employees on locked-down Windows, Mac, and Chromebook laptops can batch watermark hundreds of PDFs and images without installing executable software.
A deep dive into how modern AI inpainting algorithms detect and erase watermarks, and the mathematical design principles needed to defeat automated removal.
Protect your custom product photography from dropshippers and clone sites. A step-by-step automation workflow for bulk branding online store catalogs.
Clear answers about our technology, privacy guarantees, and usage.
No signups, no credit cards, zero server uploads. Protect your files in seconds.