Pngcrush is an optimizer for PNG (Portable Network Graphics) files. It can be
run from a commandline in an MSDOS window, or from a UNIX, LINUX or Amiga
commandline. 

Its main purpose is to reduce the size of the PNG IDAT datastream by trying
various compression levels and PNG filter methods. It also can be used to remove
unwanted ancillary chunks, or to add certain chunks including gAMA, tRNS, iCCP,
and textual chunks.


============================= Archive contents =============================
Original  Packed Ratio    Date     Time    Name
-------- ------- ----- --------- --------  -------------
   22422    8383 62.6% 09-Jan-12 23:58:44 +ChangeLog.html
  230796  123679 46.4% 21-Jan-12 05:20:54 +pngcrush
    3081    1516 50.7% 23-Jan-12 00:43:18 +pngcrush.txt
-------- ------- ----- --------- --------
  256299  133578 47.8% 23-Jan-12 00:30:28   3 files

Operation successful.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[unknown]                 8383   22422  37.4% -lh5- dc95 Jan  9 23:58 pngcrush-m68k/ChangeLog.html
[unknown]               123679  230796  53.6% -lh5- 14de Jan 21 05:20 pngcrush-m68k/pngcrush
[unknown]                 1516    3081  49.2% -lh5- 7a3d Jan 23 00:43 pngcrush-m68k/pngcrush.txt
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         3 files  133578  256299  52.1%            Jan 22 20:39