ShadowSeal

Protect your digital assets(image/pdf) with invisible watermark technology. Helps creators, photographers, designers, and professionals protect their file(image/pdf) without changing the original appearance. Unlike traditional visible watermarks, invisible watermarks stay hidden while preserving ownership information inside your files. FEATURES • Invisible watermarking Add hidden copyright information without affecting file(image/pdf) quality or appearance. • Local processing All watermark operations happen on your device. Your files never leave your device. • Robust protection Advanced algorithms provide resistance against common image modifications and help preserve watermark information. • Add & verify Easily add invisible watermarks or verify ownership by embedded information. • Multi-platform support Available on iPhone, iPad, and Mac. Your purchase works across supported devices. • One-time purchase No subscriptions. No ads. Pay once and use forever. Your creations deserve lasting protection.