Tom's Editor BLOG

Convert pnm to hlr Online: pnm2hlr

You can use Tom's Editor to easily convert images from
Portable aNy Map .PNM to Attributes Gigascreen .HLR.
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.

HLR

Attributes Gigascreen is an image format with extension HLR.