Convert WMF to PGM

The Windows Metafile (WMF) is a graphic file format used by Microsoft Windows to store vector and bitmap image data. Originating in the late 1980s, WMF files enable the efficient exchange of graphical content between applications. They serve functions like clip art storage, image rendering in documents, and transferring graphics across different software platforms. Designed to be device-independent, WMF ensures consistent image presentation regardless of the output device, maintaining visual fidelity across varying screen resolutions and printer outputs. As a legacy format, its use has diminished with the advent of more advanced graphical file formats.

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.