Convert JPM to PGM

The JPM file extension stands for JPEG 2000 Compound Image File Format. It is used for storing multiple images and graphics, incorporating JPEG 2000 compression to achieve high-quality visuals with reduced file sizes. JPM files are particularly useful in scenarios that require efficient storage and handling of complex image data, such as digital archiving, medical imaging, and document management. Developed as part of the broader JPEG 2000 standard, the JPM format was introduced to enhance image quality and compression over its predecessor, JPEG. Its support for transparency, layers, and metadata makes it a versatile choice in professional IT and imaging applications.

The Portable Graymap (PGM) file extension, originating in the late 1980s as part of the Netpbm project, stands for "Portable Gray Map". It serves as a simple, versatile format for grayscale images, enabling easy reading and writing by various programs. Due to its straightforward structure and plain text encoding, it's often used in academic and research settings where ease of parsing and accessibility are crucial. PGM files store grayscale images in a compact, efficient manner, making them an essential tool for image processing tasks.