anytopnm - convert an arbitrary type of image file to PBM,
PGM, or PPM
SYNOPSIS
anytopnm [file]
DESCRIPTION
anytopnm converts the input image, which may be in any of
dozens of graphics formats, to PBM, PGM, or PPM format,
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.
If file indicates that the input file is compressed
(either via Unix compress, gzip, or bzip compression),
anytopnm uncompresses it and proceeds as above with the
uncompressed result.
If file indicates that the input file is encoded by uuen
code 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.
SEE ALSO
pnmfile(1), pnm(5), file(1)
AUTHOR
Copyright (C) 1991 by Jef Poskanzer.
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