Convert pnm to 9xi Online: pnm29xi
You can use Tom's Editor to easily convert images from
Portable aNy Map .PNM to Texas Instruments Ti-92 .9XI.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
PNM images are uncompressed 24 bit RGB images. Can cannot store Alpha channel. PNM images come in 2 types: binary and text. Especially popular on Linux.
Texas Instruments Ti-92 is an image format with extension 9XI.