ftp.nice.ch/pub/next/unix/graphics/netpbm.19940301.NI.b.tar.gz#/netpbm/man/man5

pbm.5
 

pgm.5
 

pnm.5
 

ppm.5
 

These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.