- Extension
- .jnx
- .pgm
- Format
- Binary
- Binary
- Category
- Raster Image
- Raster Image
- Developer
- Garmin
- Jef Poskanzer
- Description
- JNX is a raster image file format used by Garmin devices. It stores satellite map images seen through a BirdsEye subscription. This satellite maps are divided into smaller tiles for faster loading when displaying them. Hence, the name tile format.
- A PGM file is a grayscale image file saved in the portable gray map (PGM) format and encoded with one or two bytes (8 or 16 bits) per pixel. It contains header information and a grid of numbers that represent different shades of gray from black (0) to white (up to 65,536). PGM files are typically stored in ASCII text format, but also have a binary representation.
- MIME Type
- application/x-jnx
- image/x-portable-graymap
