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Anytopnm User Manual(0)                                Anytopnm User Manual(0)

       anytopnm - convert an arbitrary type of image file to PBM, PGM, or PPM

       anytopnm [file]

       This program is part of Netpbm(1).

       anytopnm  converts the input image, which may be in any of about 100 graphics formats, to PBM, PGM, or PPM for-
       mat, depending on that nature of the input image, and outputs it to Standard Output.

       To determine the format of the input, anytopnm uses the file program (possibly assisted by  the  magic  numbers
       file  fragment included with Netpbm). If that fails (very few image formats have magic numbers), anytopnm looks
       at the filename extension.  If that fails, anytopnm punts.

       The type of the output file depends on the input image.

       anytopnm uses the converters for particular graphics formats that are in the Netpbm package, so it  can't  con-
       vert any format that you couldn't convert with some other Netpbm program.  What anytopnm adds is the ability to
       recognize the format and choose the appropriate Netpbm program to convert it.  For example, if you invoke  any-
       topnm  on a GIF file, anytopnm will recognize that it is a GIF file and therefore giftopnm knows how to convert
       it to PNM, so anytopnm invokes giftopnm.

       anytopnm cannot recognize every possible input format, so you may still be able to convert an image with a spe-
       cific Netpbm program when anytopnm fails to convert it.

       If file indicates that the input file is compressed (either via Unix compress, gzip, or bzip compression), any-
       topnm uncompresses it and proceeds as above with the uncompressed result.

       If file indicates that the input file is encoded by uuencode or btoa, anytopnm decodes it and proceeds as above
       with the decoded result.

       If file is - or not given, anytopnm takes its input from Standard Input.

       pamfile(1), pnm(1), file man page

       Copyright (C) 1991 by Jef Poskanzer.

netpbm documentation           05 September 2006       Anytopnm User Manual(0)