Convert CR3 to PNM

The CR3 file extension, short for Canon Raw 3, is a digital image file format used by select Canon digital cameras, such as the EOS M50 and EOS R, to store uncompressed or compressed RAW image data. Introduced in 2018, it replaced the older CR2 format and is based on the ISO Base Media File Format, supporting both lossless and lossy compression. CR3 files retain high image quality and detail, making them ideal for professional photo editing in software like Canon Digital Photo Professional and Adobe Lightroom.

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.