Convert PBM to ISOBRL

The PBM (Portable Bitmap) file extension, part of the Netpbm project, originated in the late 1980s to facilitate efficient and portable graphics file interchange. Primarily, PBM files are used to store monochrome bitmaps in a simple ASCII text format, ensuring easy compatibility across different systems and platforms. This format supports only black-and-white imagery, making it particularly useful in scenarios where simplicity and minimalism are prioritized, such as in Unix environments for bitmap manipulation and transfer. Its historical significance lies in promoting a standardized approach to bitmap graphics in early computer technology.

The ISOBRL file extension is associated with ISO/TR 11548-1 Braille, a standard for encoding 8-dot Braille characters. It is used to store textual documents in a digital format, making it accessible for blind or visually impaired individuals. This standard, established by the International Organization for Standardization (ISO), ensures compatibility across various Braille input and output devices. The ISOBRL format facilitates the exchange of Braille documents in a consistent and standardized manner.