1AdvanceCOMP Deflate CompressiGoenneUrtailliCAtodymv(ma1an)ncdesCOMMaPnuDaelflate Compression Utility(1)
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6 advdef ‐ AdvanceCOMP Deflate Compression Utility
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9 advdef [‐z, ‐‐recompress] [‐0, ‐‐shrink‐store]
10 [‐1, ‐‐shrink‐fast] [‐2, ‐‐shrink‐normal] [‐3, ‐‐shrink‐extra]
11 [‐4, ‐‐shrink‐insane] [‐f, ‐‐force] [‐q, ‐‐quiet]
12 [‐h, ‐‐help] [‐V, ‐‐version] FILES...
14 The main purpose of this utility is to recompress the data present in
15 the .png, .mng, .gz, .tgz and .svgz files.
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17 The internal structure of the files isn’t changed. Only the compressed
18 data is modified.
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21 ‐z, ‐‐recompress FILES...
22 Recompress the specified files. If the ‐1, ‐2, ‐3, ‐4 options
23 are specified it’s used the smallest file choice from the previ‐
24 ous compressed data and the new compression. If the ‐0 option is
25 specified the file is always rewritten without any compression.
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27 ‐0, ‐‐shrink‐store
28 Disable the compression. The file is only stored and not com‐
29 pressed. The file is always rewritten also if it’s bigger.
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31 ‐1, ‐‐shrink‐fast
32 Set the compression level to ˝fast˝.
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34 ‐2, ‐‐shrink‐normal
35 Set the compression level to ˝normal˝. This is the default level
36 of compression.
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38 ‐3, ‐‐shrink‐extra
39 Set the compression level to ˝extra˝.
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41 ‐4, ‐‐shrink‐insane
42 Set the compression level to ˝insane˝. It’s VERY SLOW.
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44 ‐f, ‐‐force
45 Force the use of the new file also if it’s bigger.
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48 The advdef program cannot be used to recompress huge files because it
49 needs to allocate memory for both the complete compressed and uncom‐
50 pressed data.
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53 This file is Copyright (C) 2003, 2004 Andrea Mazzoleni
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56 advpng(1), advmng(1), advzip(1), gzip(1), bzip2(1)
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60 AdvanceCOMP Deflate Compression Utility(1)