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AdvanceCOMP PNG Compression Utility(1)			   AdvanceCOMP PNG Compression Utility(1)

       advpng - AdvanceCOMP PNG Compression Utility

       advpng [-l, --list] [-z, --recompress] [-0, --shrink-0]
	    [-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 png files to get the smallest possible

       Please note that this utility is not able to read a generic file. It's granted to be  able
       to read only the files generated by the AdvanceMAME emulator.

       To compress the files this utility uses the following strategies:
       o      Remove all ancillary chunks.
       o      Concatenate all the IDAT chunks.
       o      Use the 7zip Deflate implementation.

       -l, --list FILES...
	      List the content of the specified files.

       -z, --recompress FILES...
	      Recompress  the  specified files. If the -1, -2, -3 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.

       -0, --shrink-store
	      Disable  the  compression.  The file is only stored and not compressed. The file is
	      always rewritten also if it's bigger.

       -1, --shrink-fast
	      Set the compression level to "fast".

       -2, --shrink-normal
	      Set the compression level to "normal". This is the default level of compression.

       -3, --shrink-extra
	      Set the compression level to "extra".

       -4, --shrink-insane
	      Set the compression level to "insane".

       -f, --force
	      Force the use of the new file also if it's bigger.

       This file is Copyright (C) 2002 Andrea Mazzoleni, Filipe Estima

       advzip(1), advmng(1), advdef(1)

							   AdvanceCOMP PNG Compression Utility(1)
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