Steganography is the practice of concealing a file, message, image, or video within another file, message, image, or video.
Simple java script allowing hiding or revealing data in image files using Least Significant Bit algorithm.
Original image
Image with the hidden message: Very secret message!
- Prepare a container image (preferably .png)
- Prepare a secret message
- Encode
java Steganographer <path_to_container_image> <path_to_message_text_file> - Steganographer should output an image file with hidden message
- Prepare an image with hidden message
- Decode
java Steganographer <path_to_image_with_hidden_message> - Steganographer should output a text file with hidden message
Greg (Grzegorz) Surma

