Provided by: advancecomp_1.15-1_amd64 bug


       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:
       ·      Remove all ancillary chunks.
       ·      Concatenate all the IDAT chunks.
       ·      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)