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advpng

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advpng --version (return code: 0)

advancecomp v1.20 by Andrea Mazzoleni, http://www.advancemame.it
advpng --help (return code: 0)

advancecomp v1.20 by Andrea Mazzoleni, http://www.advancemame.it
Usage: advpng [options] [FILES...]

Modes:
  -l, --list            List the content of the files
  -z, --recompress      Recompress the specified files
Options:
  -0, --shrink-store    Don't compress
  -1, --shrink-fast     Compress fast (zlib)
  -2, --shrink-normal   Compress normal (7z)
  -3, --shrink-extra    Compress extra (7z)
  -4, --shrink-insane   Compress extreme (zopfli)
  -i N, --iter=N        Compress iterations
  -f, --force           Force the new file also if it's bigger
  -q, --quiet           Don't print on the console
  -h, --help            Help of the program
  -V, --version         Version of the program

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