N NetPBM, GRAPHICS, Suite of graphic image format manipulation & conversion pgms  H           Enhanced portable bitmap  toolkit.  The PBMPLUS toolkit allowsH       conversions between image files  of different format.  By means ofH       using common intermediate formats, only  2  * N conversion filtersH       are required to support N distinct  formats,  instead  of the N**2H       which would be required to convert directly between any one formatH       and  any  other.    The  package also includes  simple  tools  for$       manipulating portable bitmaps.   D           The package consists of four upwardly compatible sections:     <       pbm     Supports monochrome bitmaps (1 bit per pixel).   H       pgm     Supports grayscale  images.    Reads  either  PBM  or  PGM,               formats and writes PGM format.   H       ppm     Supports full-color images.  Reads either PBM, PGM, or PPM)               formats, writes PPM format.    H       pnm     Supports content-independent manipulations on any  of  theH               three formats listed above, as well  as  external  formatsH               having  multiple  types.  Reads either PBM,  PGM,  or  PPMH               formats,  and  generally writes the same type as  it  readH               (whenever a PNM tool makes an exception and ``promotes'' a<               file to a higher format, it informs the user).  P --------------------------------------------------------------------------------  &                            N E T P B M  J Netpbm is based on the widely spread Pbmplus package (release: 10 Dec 91).I On top of that, a lot of improvements and additions have been made. After D the latest release of Pbmplus, a lot of additional filters have beenK circulating on the net. The aim of Netpbm was, to collect these and to turn H them into a package. This work has been performed by a group of program-K mers all over the world. If *you* have some code to add, please contact us, I and we will incorporate it. There is a mailing list for discussions about L Netpbm. You post a message to the list by writing to "netpbm@fysik4.kth.se".N If you want to be on the list, send a mail with the message "subscribe netpbm"F to "majordomo@fysik4.kth.se". If you want to report a bug, please sendB your report to netpbm@fysik4.kth.se, and to the author of Pbmplus, jef@netcom.com.     F Please note, that this is not an official Pbmplus release. The code inG this release is merely a collection of code from various sources around D the world. Not all of the new code parts follow the high standard ofE programming of Pbmplus. We have tried to make the code portable to as I many systems as possible, but we haven't cleaned up all routines. We hope F that this release will help the many users of Pbmplus to upgrade theirD code all in one piece, instead of having to hunt down different codeE fragments at different sites around the world. We also hope, that our D effort will help the author of Pbmplus, Jef Poskanzer, to make a new official release soon.  > The file Netpbm lists all new featues and functions in netpbm.