.TH "AdvanceCOMP Deflate Compression Utility" 1 .SH NAME advdef \(hy AdvanceCOMP Deflate Compression Utility .SH SYNOPSIS advdef [\(hyz, \(hy\(hyrecompress] [\(hy0, \(hy\(hyshrink\(hystore] .PD 0 .PP .PD [\(hy1, \(hy\(hyshrink\(hyfast] [\(hy2, \(hy\(hyshrink\(hynormal] [\(hy3, \(hy\(hyshrink\(hyextra] .PD 0 .PP .PD [\(hy4, \(hy\(hyshrink\(hyinsane] [\(hyf, \(hy\(hyforce] [\(hyq, \(hy\(hyquiet] .PD 0 .PP .PD [\(hyh, \(hy\(hyhelp] [\(hyV, \(hy\(hyversion] FILES... .PD 0 .PP .PD .SH DESCRIPTION The main purpose of this utility is to recompress the data present in the .png, .mng, .gz, .tgz and .svgz files. .PP The internal structure of the files isn\(cqt changed. Only the compressed data is modified. .SH OPTIONS .TP .B \(hyz, \(hy\(hyrecompress FILES... Recompress the specified files. If the \(hy1, \(hy2, \(hy3, \(hy4 options are specified it\(cqs used the smallest file choice from the previous compressed data and the new compression. If the \(hy0 option is specified the file is always rewritten without any compression. .TP .B \(hy0, \(hy\(hyshrink\(hystore Disable the compression. The file is only stored and not compressed. The file is always rewritten also if it\(cqs bigger. .TP .B \(hy1, \(hy\(hyshrink\(hyfast Set the compression level to \(a"fast\(a". .TP .B \(hy2, \(hy\(hyshrink\(hynormal Set the compression level to \(a"normal\(a". This is the default level of compression. .TP .B \(hy3, \(hy\(hyshrink\(hyextra Set the compression level to \(a"extra\(a". .TP .B \(hy4, \(hy\(hyshrink\(hyinsane Set the compression level to \(a"insane\(a". It\(cqs VERY SLOW. .TP .B \(hyf, \(hy\(hyforce Force the use of the new file also if it\(cqs bigger. .SH LIMITATIONS The advdef program cannot be used to recompress huge files because it needs to allocate memory for both the complete compressed and uncompressed data. .SH COPYRIGHT This file is Copyright (C) 2003, 2004 Andrea Mazzoleni .SH SEE ALSO advpng(1), advmng(1), advzip(1), gzip(1), bzip2(1)