Embed or extract invisible watermarks using frequency domain (DCT) transformation
Drag and drop an image here, or click to select
Supports PNG, JPG, WebP (max 10MB)
Upload an image and enter watermark text to get started
Modifies only the lowest bit, making changes imperceptible to human eye
Frequency domain embedding ensures watermark survives image processing
Resists compression, cropping, and various image transformations.