Convert pnm to hir Online: pnm2hir

You can use Tom's Editor to easily convert images from
Portable aNy Map .PNM to Hires-Bitmap .HIR.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

PNM

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.

HIR

Hires-Bitmap is an image format with extension HIR.