Ermis is a cross-platform steganography application that allows you to hide and extract
secret data within digital media files. Named after the Greek god of messages and
communication, Ermis enables covert communication through innocent-looking image and
audio files.

Image Steganography:

• Hide data in PNG, JPG, and BMP images using LSB (Least Significant Bit) techniques
• Live preview of original and modified images with side-by-side comparison
• PRT Artistic Mode: Specialized visual steganography for camera-scannable codes
• Real-time capacity indicator showing available hiding space

Audio Steganography:

• Support for WAV, MP3, FLAC, and OGG audio files
• Automatic conversion of non-WAV files using FFmpeg
• Built-in audio player with play/pause/stop and volume controls
• Metadata extraction for accurate capacity calculation

Data Handling:

• Text input for hiding plain messages with UTF-8 encoding
• File input for hiding any file type with filename preservation
• Smart marker system (0x00 for text, length byte for files)
• Automatic detection of data type during extraction

Security Features:

• Optional AES encryption with passphrase protection
• ENCR marker for automatic encrypted data detection
• Passphrase memory during current session
• Secure extraction with decryption prompts

User Interface:

• Dual-tab interface for hiding and extracting data
• Drag and drop support for both images and audio files
• Clipboard integration for one-click text copying
• Image preview highlighting with file path display
• Camera integration for scanning PRT artistic codes