Projects / Netpbm


NetPBM (formerly PBMplus) is a package of over 220 programs that convert from one graphics format to another and do simple editing and analysis of images. There are no interactive tools in this package, and nothing that displays graphics of any kind. It is like a non-GUI equivalent of ImageMagick, GIMP, and Adobe Photoshop, etc. Over 100 graphics formats are handled, including JPEG, MPEG, PNG, GIF, TIFF, BMP, XWD, XBM, G3 fax, and special formats used by digital cameras and handheld computers. Over 40 editing functions include scaling, cropping, quantization and dithering, colorizing and uncolorizing, blurring, and dimming. Netpbm programs are often invoked by other programs, for example in CGI scripts that manage web site graphics. It also includes a C function library which helps you write programs to process graphics at a lower level than the Netpbm utilities.


Recent releases

  •  19 Apr 2006 06:40

    Release Notes: Many bugfixes.

    •  06 Sep 2003 19:46

      Release Notes: In the past year, 14 new programs have been added, and lots of new features were added to existing programs. There are about 20 bug fixes. Jpeg2000 converters now exist, the Windows Icon converters understand 32-bit icons, and the BMP converter works on more BMP variants, including 16-bit. Tifftopnm also handles more variations of TIFF. Lots of additional documentation has been written.

      •  06 Sep 2002 07:19

        Release Notes: In the past year, 20 new programs have been added to the package, doing such things as converting to the image format used by a handheld wireless device to stitching together multiple panoramic photographs of a scene. This version has HTML documentation, with a current version kept on the Internet and local installation optional. It also includes a man-like program for viewing it for people who like the old way. An all new build process makes multi-system installation and distribution easier and reduces installation failures.

        •  27 Aug 2001 18:09

          Release Notes: There are lots of fixes, enhancements, and additions in the 7 releases over the past 9 months. It now handles the Palm, Nokia, Thinkjet, 411 (Mavica digital camera), and neo formats. There is an automatic configure utility that works in the most common cases. It builds and runs on Windows and Mac OS X in addition to all the other platforms. The Tiff library is no longer included in the package.

          •  06 Dec 2000 10:33

            Release Notes: Tifftopnm and Pnmtotiff handle 16-bit tiffs. Rawtopgm handles more kinds of input. ppmtolj was added for HP color laser printers (PCL). Ppmchange changes colors specified approximately. Jpegtopnm now recognizes the Adobe variant of Jpeg, and it looks for rgb.txt in the X11R6/lib/X11 directory, where X11 now puts it. Ppmfade and Pnmindex have been extended. Bugfixes were made to Pnmcut, Pnmscale, Ppmspread, and Xpmtoppm.

            Recent comments

            19 Jan 2000 17:49 pstrader

            Metalab has them
            You can find them at
            Hope this helps
            Peace, Pete


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