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AdvanceCOMP Deflate CompressGenerallCommaneCOMPnDeflate	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] [-i, --iter N]
	    [-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	previ-
	      ous 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  com-
	      pressed. The file	is always rewritten also if it's bigger.

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

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

       -3, --shrink-extra
	      Set the compression level	to "extra" using  the  7z  compressor.
	      You can define the compressor iterations with the	-i, --iter op-
	      tion.

       -4, --shrink-insane
	      Set the compression level	to "insane" using the zopfli  compres-
	      sor.   You  can  define  the  compressor iterations with the -i,
	      --iter option.

       -i, --iter N
	      Define an	additional numer of iterations for the 7z  and	zopfli
	      compressors for modes -3 and -4.	More iterations	usually	give a
	      better compression, but may require a lot	more  time.   Try  for
	      example with 10, 15, 20, and so on.

       -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)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | LIMITATIONS | COPYRIGHT | SEE ALSO

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