Convert PNM to UBRL

The PNM (Portable Anymap) file extension, developed by Jef Poskanzer in the 1980s, stands for Portable Any Map. It is an uncompressed raster graphics format designed for portable image storage and exchange, encompassing three sub-formats: PBM (Portable Bitmap), PGM (Portable Graymap), and PPM (Portable Pixmap). PNM files store image data in plain text or binary format, ensuring easy usage across different platforms and applications. This format is widely supported by various image editing software and is valued for its simplicity and lossless compression.

The UBRL file extension stands for Unicode Braille and is used to represent Braille characters using Unicode encoding. Developed to facilitate the exchange and storage of Braille content digitally, it ensures accessibility for individuals with visual impairments. UBRL files are associated with ImageMagick and support both uncontracted and contracted Braille fonts. This format allows for easy integration of Braille text into various applications and systems.