Bulk Watermark Generator
Protect your photography and digital assets. Upload multiple images, configure your watermark, and download a processed ZIP file instantly.
Click or drag up to 100 images here
0 files selectedWatermarking Standards
Local DOM Canvas Rendering
When you process images, they are drawn onto a hidden HTML5 <canvas> element directly
within your browser. The text or logo is layered on top mathematically, ensuring your files never touch
a remote server.
Dynamic Scaling
Image batches often contain varying resolutions. The watermark scale is calculated as a percentage of each individual image's width, guaranteeing a consistent visual size whether the image is 800px or 4K.
Lossless ZIP Archiving
To handle bulk exports without crashing the browser with hundreds of individual download prompts, the
processed images are instantly compressed into a standard ZIP archive utilizing the
JSZip library.