jpeginfo is a command-line utility designed to extract and analyze detailed information from JPEG image files. The tool provides comprehensive metadata about JPEG files including image dimensions, compression settings, and embedded metadata. Key capabilities include: - Extraction of technical image properties such as width, height, and compression parameters - Metadata analysis and display from JPEG file headers - Checksum calculation support for MD5 and SHA-256 hash algorithms - Multiple output format options including CSV and JSON for structured data export - Cross-platform compatibility across Linux, MacOS, and Solaris systems - Customizable display settings and input file specification options The tool operates through command-line interface with various configuration parameters to control output formatting and information display. It processes JPEG files to reveal technical specifications and embedded data that may not be visible through standard image viewers. jpeginfo serves digital forensics professionals, developers, and photographers who require detailed technical analysis of JPEG image files for investigation, development, or quality assessment purposes.