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 Readme for:  Graphics » Edit » pngcrush.lha

Pngcrush

Description: PNG file optimizer
Download: pngcrush.lha       (TIPS: Use the right click menu if your browser takes you back here all the time)
Size: 543kb
Version: 1.6.4
Date: 12 Apr 2007
Author: Glenn Randers-Pehrson (OS4 port by Fredrik Wikstrom)
Submitter: Steven Solie
Category: graphics/edit
Replaces: graphics/edit/pngcrush.lha
License: Other
Distribute: yes
Min OS Version: 4.0
FileID: 2699
 
Comments: 2
Snapshots: 0
Videos: 0
Downloads: 175  (Current version)
223  (Accumulated)
Votes: 0 (0/0)  (30 days/7 days)

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 | pngcrush 1.6.4
 |    Copyright (C) 1998-2002,2006 Glenn Randers-Pehrson
 |    Copyright (C) 2005      Greg Roelofs
 | This is a free, open-source program.  Permission is irrevocably
 | granted to everyone to use this version of pngcrush without
 | payment of any fee.
 | Executable name is pngcrush
 | It was built with libpng version 1.2.11beta4, and is
 | running with  libpng version 1.2.11beta4 - June 7, 2006 (header)
 |    Copyright (C) 1998-2004,2006 Glenn Randers-Pehrson,
 |    Copyright (C) 1996, 1997 Andreas Dilger,
 |    Copyright (C) 1995, Guy Eric Schalnat, Group 42 Inc.,
 | and zlib version 1.2.3, Copyright (C) 1998-2002 (or later),
 |    Jean-loup Gailly and Mark Adler.
 | It was compiled with gcc version 4.0.2 (AmigaOS build 20051012).


Copyright (C) 1998-2002,2006 Glenn Randers-Pehrson (glennrp()users.sf.net)
Copyright (C) 2005      Greg Roelofs

DISCLAIMER: The pngcrush computer program is supplied "AS IS".
The Author disclaims all warranties, expressed or implied, including,
without limitation, the warranties of merchantability and of fitness
for  any purpose.  The Author assumes no liability for direct, indirect,
incidental, special, exemplary, or consequential damages, which may
result from the use of the computer program, even if advised of the
possibility of such damage.  There is no warranty against interference
with your enjoyment of the computer program or against infringement.
There is no warranty that my efforts or the computer program will
fulfill any of your particular purposes or needs.  This computer
program is provided with all faults, and the entire risk of satisfactory
quality, performance, accuracy, and effort is with the user.

LICENSE: Permission is hereby irrevocably granted to everyone to use,
copy, modify, and distribute this computer program, or portions hereof,
purpose, without payment of any fee, subject to the following
restrictions:

1. The origin of this binary or source code must not be misrepresented.

2. Altered versions must be plainly marked as such and must not be
misrepresented as being the original binary or source.

3. The Copyright notice, disclaimer, and license may not be removed
or altered from any source, binary, or altered source distribution.


usage: pngcrush [options] infile.png outfile.png
       pngcrush -e ext [other options] files.png ...
       pngcrush -d dir [other options] files.png ...
options:
      -already already_crushed_size [e.g., 8192]
    -bit_depth depth (bit_depth to use in output file)
        -brute (use brute-force: try 126 different methods [11-136])
            -c color_type of output file [0, 2, 4, or 6]
            -d directory_name (where output files will go)
 -double_gamma (used for fixing gamma in PhotoShop 5.0/5.02 files)
            -e extension  (used for creating output filename)
            -f user_filter [0-5]
          -fix (fix otherwise fatal conditions such as bad CRCs)
        -force (write a new output file even if larger than input)
            -g gamma (float or fixed*100000, e.g., 0.45455 or 45455)
      -huffman (use only zlib strategy 2, Huffman-only)
         -iccp length "Profile Name" iccp_file
         -itxt b[efore_IDAT]|a[fter_IDAT] "keyword"
            -l zlib_compression_level [0-9]
         -loco ("loco crush" truecolor PNGs)
            -m method [0 through 200]
          -max maximum_IDAT_size [default 8192]
  -nofilecheck (do not check for infile.png == outfile.png)
            -n (no save; does not do compression or write output PNG)
     -plte_len n (truncate PLTE)
            -q (quiet)
       -reduce (do lossless color-type or bit-depth reduction)
          -rem chunkname (or "alla" or "allb")
-replace_gamma gamma (float or fixed*100000) even if gAMA is present.
          -res dpi
          -rle (use only zlib strategy 3, RLE-only)
         -save (keep all copy-unsafe chunks)
         -srgb [0, 1, 2, or 3]
         -text b[efore_IDAT]|a[fter_IDAT] "keyword" "text"
   -trns_array n trns[0] trns[1] .. trns[n-1]
         -trns index red green blue gray
            -v (display more detailed information)
      -version (display the pngcrush version)
            -w compression_window_size [32, 16, 8, 4, 2, 1, 512]
            -z zlib_strategy [0, 1, 2, or 3]
         -zmem zlib_compression_mem_level [1-9, default 9]
        -zitxt b[efore_IDAT]|a[fter_IDAT] "keyword"
         -ztxt b[efore_IDAT]|a[fter_IDAT] "keyword" "text"
            -h (help and legal notices)
            -p (pause)


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