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Tux Paint
バージョン 0.9.31
バージョン 0.9.31
PNG Documentation
Copyright © 2007-2022 by various contributors; AUTHORS.txt 参照.
Copyright © 2007-2022 by various contributors; AUTHORS.txt 参照.
https://tuxpaint.org/
2022年6月 4日
2022年6月 4日
About PNGs
About PNGs
PNG is the Portable Network Graphic format. It is an open standard, not
burdened by patents (like GIFs). It is a highly compressed format (though
not "lossy" like JPEGs - lossiness allows files to be much smaller, but
introduces 'mistakes' in the image when saved), and supports 24-bit color
(16.7 million colors) as well as a full "alpha channel" - that is, each
pixel can have a varying degree of transparency.
PNG is the Portable Network Graphic format. It is an open standard, not
burdened by patents (like GIFs). It is a highly compressed format (though not
"lossy" like JPEGs - lossiness allows files to be much smaller, but introduces
'mistakes' in the image when saved), and supports 24-bit color (16.7 million
colors) as well as a full "alpha channel" - that is, each pixel can have a
varying degree of transparency.
For more information, visit: http://www.libpng.org/
For more information, visit: http://www.libpng.org/
These features (openness, losslessness, compression, transparency/alpha)
make it the best choice for Tux Paint. (Tux Paint's support for the PNG
format comes from the Open Source SDL_Image library, which in turn gets it
from the libPNG library.)
These features (openness, losslessness, compression, transparency/alpha) make
it the best choice for Tux Paint. (Tux Paint's support for the PNG format comes
from the Open Source SDL_Image library, which in turn gets it from the libPNG
library.)
Support for many colors allows photo-quality "rubber stamp" images to be
used in Tux Paint, and alpha transparency allows for high-quality brushes.
Support for many colors allows photo-quality "rubber stamp" images to be used
in Tux Paint, and alpha transparency allows for high-quality brushes.
How To Make PNGs
The following is a very brief list of ways to create PNGs or convert
existing images into PNGs.
The following is a very brief list of ways to create PNGs or convert existing
images into PNGs.
GIMP & Krita
GIMP & Krita
Excellent tools with which to create PNG images for use in Tux
Paint are GIMP and Krita, both high-quality Open Source
interactive drawing and photo editing programs.
Excellent tools with which to create PNG images for use in Tux Paint are
GIMP and Krita, both high-quality Open Source interactive drawing and photo
editing programs.
It is likely that one or both are already installed on your
system. If not, they should be readily available from your Linux
distribution's software repository. If not, or to learn more,
visit http://www.gimp.org/ and http://www.krita.org/,
respectively.
It is likely that one or both are already installed on your system. If not,
they should be readily available from your Linux distribution's software
repository. If not, or to learn more, visit http://www.gimp.org/ and http:/
/www.krita.org/, respectively.
Command-line Tools
NetPBM
The Portable Bitmap tools (collectively known as
"NetPBM") is a collection of Open Source command-line
tools which convert to and from various formats,
including GIF, TIFF, BMP, PNG, and many more.
Command-line Tools
It is possible that it's already installed on your
system. If not, they it be readily available from
your Linux distribution's software repository. If
not, or to learn more, visit
http://netpbm.sourceforge.net/.
NetPBM
cjpeg/djpeg
The Portable Bitmap tools (collectively known as "NetPBM") is a
collection of Open Source command-line tools which convert to and from
various formats, including GIF, TIFF, BMP, PNG, and many more.
It is possible that it's already installed on your system. If not, they
it be readily available from your Linux distribution's software
repository. If not, or to learn more, visit http://
netpbm.sourceforge.net/.
cjpeg/djpeg
The "cjpeg" and "djpeg" command-line programs convert between the
NetPBM Portable Any Map (PNM) format and JPEGs. It is possible that
it's already installed on your system. If not, they it be readily
available from your Linux distribution's software repository. If not,
or to learn more, visit https://jpegclub.org/.
Proprietary Software for Windows
+ CorelDRAW (Corel) — http://www.corel.com/
+ Illustrator (Adobe) — http://www.adobe.com/products/illustrator.html
+ Paint Shop Pro (Corel) — https://www.paintshoppro.com/
+ Photoshop (Adobe) — http://www.adobe.com/products/photoshop.html
+ PIXresizer (Bluefive software) — http://bluefive.pair.com/
pixresizer.htm
Macintosh Users
+ CorelDRAW (Corel) — http://www.corel.com/
+ GraphicConverter (Lemke Software) — https://www.lemkesoft.de/
mac-fotobearbeitung-mac-diashow-mac-grafikprogramm-mac-bildbetrachter/
+ Illustrator (Adobe) — http://www.adobe.com/products/illustrator.html
+ Photoshop (Adobe) — http://www.adobe.com/products/photoshop.html
The "cjpeg" and "djpeg" command-line programs convert
between the NetPBM Portable Any Map (PNM) format and
JPEGs. It is possible that it's already installed on
your system. If not, they it be readily available
from your Linux distribution's software repository.
If not, or to learn more, visit
https://jpegclub.org/.
Proprietary Software for Windows
* CorelDRAW (Corel) — http://www.corel.com/
* Illustrator (Adobe) —
http://www.adobe.com/products/illustrator.html
* Paint Shop Pro (Corel) — https://www.paintshoppro.com/
* Photoshop (Adobe) —
http://www.adobe.com/products/photoshop.html
* PIXresizer (Bluefive software) —
http://bluefive.pair.com/pixresizer.htm
Macintosh Users
* CorelDRAW (Corel) — http://www.corel.com/
* GraphicConverter (Lemke Software) —
https://www.lemkesoft.de/mac-fotobearbeitung-mac-diashow-mac-grafikprogramm-mac-bildbetrachter/
* Illustrator (Adobe) —
http://www.adobe.com/products/illustrator.html
* Photoshop (Adobe) —
http://www.adobe.com/products/photoshop.html