NAME¶

SYNOPSIS¶

[-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 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" using the zlib compressor.

-2, --shrink-normal

Set the compression level to "normal" using the libdeflate compressor. 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 option.

-4, --shrink-insane

Set the compression level to "insane" using the zopfli compressor. 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¶

COPYRIGHT¶

SEE ALSO¶