Convert JFIF to PAM

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 PAM (Portable Arbitrary Map) file extension is a versatile bitmap format used primarily in UNIX-based systems. It extends the Portable Any Map (PNM) format, supporting 2-dimensional image data storage in a binary format with an ASCII header. Introduced to enhance flexibility and interoperability in image processing, PAM files are utilized for various graphical applications, offering a standardized method for handling diverse image types. This format's history traces back to the need for a more adaptable and comprehensive bitmap solution within the PNM family.