Convert PFA GRAPHICS to PGM

The PFA (Printer Font ASCII) file extension, developed by Adobe Systems, stores Adobe Type 1 fonts in a human-readable ASCII format, which can be converted to image files. Introduced as part of the PostScript character category in 1982, PFA files contain glyph data and can be opened in any text editor. They are primarily used on Linux and UNIX-like platforms and are incorporated into systems by copying them into the Fonts folder. The binary counterpart of PFA is the PFB (Printer Font Binary) file.

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.