Embed an invisible digital watermark in your images and generate a timestamped RFC 3161 certificate — entirely on your device.
Download on the App StoreDCT-based steganography embeds your signature directly into the pixels — imperceptible to the human eye.
Cryptographic timestamping via a TSA of your choice. Compatible with eIDAS-qualified providers.
Each signature generates a verifiable PDF with a QR code — shareable as proof of authenticity.