90 lines
3.5 KiB
Text
90 lines
3.5 KiB
Text
Tux Paint
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バージョン 0.9.36
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PNG Documentation
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Copyright © 2007-2022 by various contributors; AUTHORS.txt 参照.
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https://tuxpaint.org/
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2022年6月 4日
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About PNGs
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PNG is the Portable Network Graphic format. It is an open standard, not
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burdened by patents (like GIFs). It is a highly compressed format (though not
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"lossy" like JPEGs - lossiness allows files to be much smaller, but introduces
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'mistakes' in the image when saved), and supports 24-bit color (16.7 million
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colors) as well as a full "alpha channel" - that is, each pixel can have a
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varying degree of transparency.
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For more information, visit: http://www.libpng.org/
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These features (openness, losslessness, compression, transparency/alpha) make
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it the best choice for Tux Paint. (Tux Paint's support for the PNG format comes
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from the Open Source SDL_Image library, which in turn gets it from the libPNG
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library.)
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Support for many colors allows photo-quality "rubber stamp" images to be used
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in Tux Paint, and alpha transparency allows for high-quality brushes.
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### How To Make PNGs ###
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The following is a very brief list of ways to create PNGs or convert existing
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images into PNGs.
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→ GIMP & Krita ←
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Excellent tools with which to create PNG images for use in Tux Paint are
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GIMP and Krita, both high-quality Open Source interactive drawing and photo
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editing programs.
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It is likely that one or both are already installed on your system. If not,
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they should be readily available from your Linux distribution's software
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repository. If not, or to learn more, visit http://www.gimp.org/ and http:/
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/www.krita.org/, respectively.
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→ Command-line Tools ←
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→ NetPBM ←
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The Portable Bitmap tools (collectively known as "NetPBM") is a
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collection of Open Source command-line tools which convert to and from
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various formats, including GIF, TIFF, BMP, PNG, and many more.
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It is possible that it's already installed on your system. If not, they
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it be readily available from your Linux distribution's software
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repository. If not, or to learn more, visit http://
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netpbm.sourceforge.net/.
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→ cjpeg/djpeg ←
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The "cjpeg" and "djpeg" command-line programs convert between the
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NetPBM Portable Any Map (PNM) format and JPEGs. It is possible that
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it's already installed on your system. If not, they it be readily
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available from your Linux distribution's software repository. If not,
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or to learn more, visit https://jpegclub.org/.
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→ Proprietary Software for Windows ←
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o CorelDRAW (Corel) — http://www.corel.com/
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o Illustrator (Adobe) — http://www.adobe.com/products/illustrator.html
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o Paint Shop Pro (Corel) — https://www.paintshoppro.com/
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o Photoshop (Adobe) — http://www.adobe.com/products/photoshop.html
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o PIXresizer (Bluefive software) — http://bluefive.pair.com/
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pixresizer.htm
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→ Macintosh Users ←
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o CorelDRAW (Corel) — http://www.corel.com/
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o GraphicConverter (Lemke Software) — https://www.lemkesoft.de/
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mac-fotobearbeitung-mac-diashow-mac-grafikprogramm-mac-bildbetrachter/
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o Illustrator (Adobe) — http://www.adobe.com/products/illustrator.html
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o Photoshop (Adobe) — http://www.adobe.com/products/photoshop.html
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