centos man page for advdef

AdvanceCOMP Deflate Compression Utility(1)		      General Commands Manual			AdvanceCOMP Deflate Compression Utility(1)

NAME
       advdef - AdvanceCOMP Deflate Compression Utility

SYNOPSIS
       advdef [-z, --recompress] [-0, --shrink-store]
	    [-1, --shrink-fast] [-2, --shrink-normal] [-3, --shrink-extra]
	    [-4, --shrink-insane] [-f, --force] [-q, --quiet]
	    [-h, --help] [-V, --version] FILES...
DESCRIPTION
       The main purpose of this utility is to recompress the data present in the .png, .mng, .gz, .tgz and .svgz files.

       The internal structure of the files isn't changed.  Only the compressed data is modified.

OPTIONS
       -z, --recompress FILES...
	      Recompress  the  specified  files.  If the -1, -2, -3, -4 options are specified it's used the smallest file choice from the previous
	      compressed data and the new compression. If the -0 option is specified the file is always rewritten without any compression.

       -0, --shrink-store
	      Disable the compression. The file is only stored and not compressed. The file is always rewritten also if it's bigger.

       -1, --shrink-fast
	      Set the compression level to "fast".

       -2, --shrink-normal
	      Set the compression level to "normal". This is the default level of compression.

       -3, --shrink-extra
	      Set the compression level to "extra".

       -4, --shrink-insane
	      Set the compression level to "insane". It's VERY SLOW.

       -f, --force
	      Force the use of the new file also if it's bigger.

LIMITATIONS
       The advdef program cannot be used to recompress huge files because it needs to allocate memory for both the complete compressed and  uncom-
       pressed data.

COPYRIGHT
       This file is Copyright (C) 2003, 2004 Andrea Mazzoleni

SEE ALSO
       advpng(1), advmng(1), advzip(1), gzip(1), bzip2(1)

													AdvanceCOMP Deflate Compression Utility(1)