anytopnm Man page

anytopnm General Commands Manual anytopnm

NAME

anytopnm – attempt to convert an unknown type of image file to a porta‐
ble anymap

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 pro‐
ceeds 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.

SEE ALSO

pnmfile, pnm(5), file

AUTHOR

Copyright (C) 1991 by Jef Poskanzer.

11 July 2000 anytopnm

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