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       advdef ‐ AdvanceCOMP Deflate Compression Utility


       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...


       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.


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

       ‐0, ‐‐shrinkstore
              Disable  the  compression.  The  file  is  only  stored  and not
              compressed. The file is always rewritten also if it’s bigger.

       ‐1, ‐‐shrinkfast
              Set the compression level to ˝fast˝.

       ‐2, ‐‐shrinknormal
              Set the compression level to ˝normal˝. This is the default level
              of compression.

       ‐3, ‐‐shrinkextra
              Set the compression level to ˝extra˝.

       ‐4, ‐‐shrinkinsane
              Set the compression level to ˝insane˝. It’s VERY SLOW.

       ‐f, ‐‐force
              Force the use of the new file also if it’s bigger.


       The  advdef  program cannot be used to recompress huge files because it
       needs  to  allocate  memory  for  both  the  complete  compressed   and
       uncompressed data.


       This file is Copyright (C) 2003, 2004 Andrea Mazzoleni


       advpng(1), advmng(1), advzip(1), gzip(1), bzip2(1)

                                    AdvanceCOMP Deflate Compression Utility(1)