<html> <head> <title>AdvanceCOMP Deflate Compression Utility</title> </head> <body> <center><h2>AdvanceCOMP Deflate Compression Utility</h2></center> <h2><a name="1">1</a> Synopsis </h2> <pre> 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... </pre> <h2><a name="2">2</a> Description </h2> The main purpose of this utility is to recompress the data present in the .png, .mng, .gz, .tgz and .svgz files. <p> The internal structure of the files isn't changed. Only the compressed data is modified. <h2><a name="3">3</a> Options </h2> <table width="100%" border="0" cellspacing="0" cellpadding="2"> <tr valign="top" align="left"><td><strong> -z, --recompress FILES... </strong></td></tr><tr><td> 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. </td></tr> </table> <table width="100%" border="0" cellspacing="0" cellpadding="2"> <tr valign="top" align="left"><td><strong> -0, --shrink-store </strong></td></tr><tr><td> Disable the compression. The file is only stored and not compressed. The file is always rewritten also if it's bigger. </td></tr> </table> <table width="100%" border="0" cellspacing="0" cellpadding="2"> <tr valign="top" align="left"><td><strong> -1, --shrink-fast </strong></td></tr><tr><td> Set the compression level to "fast". </td></tr> </table> <table width="100%" border="0" cellspacing="0" cellpadding="2"> <tr valign="top" align="left"><td><strong> -2, --shrink-normal </strong></td></tr><tr><td> Set the compression level to "normal". This is the default level of compression. </td></tr> </table> <table width="100%" border="0" cellspacing="0" cellpadding="2"> <tr valign="top" align="left"><td><strong> -3, --shrink-extra </strong></td></tr><tr><td> Set the compression level to "extra". </td></tr> </table> <table width="100%" border="0" cellspacing="0" cellpadding="2"> <tr valign="top" align="left"><td><strong> -4, --shrink-insane </strong></td></tr><tr><td> Set the compression level to "insane". It's VERY SLOW. </td></tr> </table> <table width="100%" border="0" cellspacing="0" cellpadding="2"> <tr valign="top" align="left"><td><strong> -f, --force </strong></td></tr><tr><td> Force the use of the new file also if it's bigger. </td></tr> </table> <h2><a name="4">4</a> Limitations </h2> The advdef program cannot be used to recompress huge files because it needs to allocate memory for both the complete compressed and uncompressed data. <h2><a name="5">5</a> Copyright </h2> This file is Copyright (C) 2003, 2004 Andrea Mazzoleni <h2><a name="6">6</a> See Also </h2> advpng(1), advmng(1), advzip(1), gzip(1), bzip2(1) </body> </html>
