Nokia Picture Message

File Format
Name	Nokia Picture Message
Ontology	Electronic File Formats Graphics Nokia Picture Message
Extension(s)	.npm

Nokia Picture Message (or Nokia Phone Picture Message, NPM) is a bi-level raster image format used by some Nokia phones. NPM images are 72×28 pixels, though the format supports other sizes up to 255×255.

Format

Files begin with a header of at least 11 bytes. The header size depends on the size of a variable-length "text message" field.

Identification

Files begin with the ASCII string "NPM".

Software

• Netpbm: pbmtonokia, with "-fmt NPM" option (write-only)
• Deark

Sample files

• KESSLER Wireless Design - Samples
• dexvert samples — image/nokiaPictureMessage