Stego PNG

Stego PNG is a simple steganography program which allows you to encrypt and hide a file in a PNG or BMP image file, with the use of a stego/encryption key, so that the presence of the hidden file is undetectable, even by forensic software using statistical methods. The hidden file can be extracted only by someone who knows the key used to hide it. Useful for hiding a message (or just a copyright notice) in a PNG image on a web page.