NAME¶
anytopnm - attempt to convert an unknown type of image file to a portable 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
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.
SEE ALSO¶
pnmfile(1),
pnm(5),
file(1)
AUTHOR¶
Copyright (C) 1991 by Jef Poskanzer.