Convert nsr to pnm Online: nsr2pnm
You can use Tom's Editor to easily convert images from
Newsroom .NSR to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
NSR
Newsroom is an image format with extension NSR.
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.