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gfx/edit/pnger.lha

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Short:Low-level PNG editor (TweakPNG clone)
Author:Peter Gordon
Uploader:"Peter Gordon" <pete petergordon org uk>
Type:gfx/edit
Version:0.1
Architecture:ppc-amigaos >= 4.0.5
Date:2008-04-05
Download:http://aminet.net/gfx/edit/pnger.lha - View contents
Readme:http://aminet.net/gfx/edit/pnger.readme
Downloads:592

PNGer:  A low-level PNG image file manipulation utility
Version 0.1 - 04 April 2008
Copyright (c) 2008 Peter Gordon <pete at petergordon.org.uk>

PNGer contains portions of code from TweakPNG 1.2.1
Copyright (c) 1999-2004 Jason Summers  <jason1 at pobox.com>
<http://entropymine.com/jason/tweakpng/>


==================== License ====================

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA

A copy of the GNU General Public License is included in the file 
COPYING.txt.


========================================================


To get the latest version of PNGer, visit the PNGer home page at 
http://www.petergordon.org.uk/pnger/



================== Requirements ========================

- A computer running AmigaOS4

- A mouse or equivalent input device for the palette editor.

- Some knowledge of the PNG file format.


To install:
Create an empty directory and unarchive the contents of pnger.lha
into it.

To run:
Double click the "pnger" icon, or run pnger from the CLI.

To uninstall:
Delete the directory you created and its contents.


==================== Introduction ====================

PNGer is an interactive PNG file editor utility that allows you to view 
and modify some of the meta-information stored in PNG image files. It is 
not a real image editor or viewer (although it has an option to view the
current state of the loaded PNG file in multiview).

The rest of this document will be difficult to understand if you are not 
familiar with the details of the PNG file format. To learn about it, look 
for the specification at the PNG home page, 
<http://www.libpng.org/pub/png/>. Viewing files in PNGer may, however, 
make it easier to become familiar with the PNG format.

Here are a few of the possible uses of PNGer:

- To remove unneeded or unwanted chunks, usually to reduce file size.

- To annotate an image file by adding or modifying text chunks.

- To change background colors and transparency settings.

- To help make test images for testing applications that read PNG files.


Contents of gfx/edit/pnger.lha
 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 7016   17990  39.0% -lh5- 20f0 Apr  4 14:01 COPYING.txt
[generic]                 6784    9454  71.8% -lh5- ebe9 Apr  4 14:29 COPYING.txt.info
[generic]               115497  364216  31.7% -lh5- a971 Apr  4 14:14 pnger
[generic]                 8333   10731  77.7% -lh5- 3d19 Apr  4 14:29 pnger.info
[generic]                 5034   12973  38.8% -lh5- 2d47 Apr  4 14:37 readme.txt
[generic]                 6812    9550  71.3% -lh5- f00f Apr  4 14:29 readme.txt.info
[generic]                   74      82  90.2% -lh5- fe97 Apr  4 14:20 sample.chunk
[generic]                13476   13476 100.0% -lh0- bfe8 Apr  4 14:01 sample.png
[generic]                28802  229812  12.5% -lh5- c160 Apr  4 14:30 src/gui.c
[generic]                 1176    3301  35.6% -lh5- 4d09 Apr  4 14:30 src/gui.h
[generic]                  278     697  39.9% -lh5- 8172 Apr  4 14:30 src/makefile
[generic]                10702   45055  23.8% -lh5- 0bb7 Apr  4 14:30 src/png.c
[generic]                 1474    3944  37.4% -lh5- 35b9 Apr  4 14:30 src/png.h
[generic]                 1986    5183  38.3% -lh5- 8f33 Apr  4 14:30 src/pnger.c
[generic]                   79      81  97.5% -lh5- bd34 Apr  4 14:30 src/pnger.h
[generic]                  531     910  58.4% -lh5- 9bb2 Apr  4 14:30 src/pnger_locale.h
[generic]                14012   64563  21.7% -lh5- b8b7 Apr  4 14:30 src/pnger_trans.h
[generic]                 1063    2238  47.5% -lh5- 73d2 Apr  4 14:30 src/util.c
[generic]                  543     987  55.0% -lh5- 3fdd Apr  4 14:30 src/util.h
[generic]                  126     158  79.7% -lh5- 1ba0 Apr  4 14:30 src/version.h
[generic]                 7260    9518  76.3% -lh5- dec9 Apr  4 14:29 Translators.info
[generic]                 4572   13242  34.5% -lh5- 9b36 Apr  4 14:29 Translators/pnger.cd
[generic]                 6925    9486  73.0% -lh5- e097 Apr  4 14:29 Translators/pnger.cd.info
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        23 files  242555  827647  29.3%            Apr  5 08:14

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