Convert JFIF to G3

The JPEG File Interchange Format (JFIF), developed by the Joint Photographic Experts Group, is a standardized method of storing and transferring JPEG-compressed images. Introduced in 1991, JFIF ensures compatibility and interoperability among different platforms and applications. It is extensively used in digital imaging and multimedia for efficient image compression, which reduces file size without significant loss of quality. As a widely adopted format, JFIF supports a range of devices and software, making it a cornerstone in computer graphics and online image sharing.

The G3 file extension refers to the CCITT Group 3 Fax Image, a standardized format developed by the Consultative Committee for International Telegraphy and Telephony (CCITT), now known as ITU-T. This format was created to efficiently compress black-and-white fax documents for transmission over telephone lines. It employs a method called Modified Huffman Coding for data compression, enabling reduced transmission time and bandwidth usage. G3 was widely adopted in the 1980s and 1990s as the primary standard for fax transmissions, ensuring compatibility across different fax machines and systems.