pdvrdt is a metadata “steganography-like” command-line and web tool used for concealing and extracting any file type within and from a PNG image.
png cryptography twitter zlib libsodium steganography infosec hidden-message mastodon hidden-files x-platform data-hiding idat privacy-tools hide-data cli-tools arbitrary-data iccp conceal-data hide-files-in-image
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Updated
Oct 17, 2025 - C++