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Sometimes, you find a drawing or similar image useful for a Wikipedia article, that was saved as a JPEG but should have been saved as a PNG.JPEG is good for images where the color changes fluidly throughout the image, like in a photograph, whereas PNG files are good for images with relatively few colors, such as a drawing of a flag, a chart, or a map; note that sometimes SVG is better.
When converting an image from the PNG format to GIF, the image quality may suffer due to posterization if the PNG image has more than 256 colors. GIF intrinsically supports animated images. PNG supports animation only via unofficial extensions (see the section on animation, above). PNG images are less widely supported by older browsers.
The following other wikis use this file: Usage on als.wikipedia.org Microsoft Excel; Usage on ar.wikipedia.org مايكروسوفت إكسل; Usage on arz.wikipedia.org
The PNG (Portable Network Graphics) file format was created as a free, open-source alternative to GIF. The PNG file format supports 8-bit (256 colors) paletted images (with optional transparency for all palette colors) and 24-bit truecolor (16 million colors) or 48-bit truecolor with and without alpha channel – while GIF supports only 8-bit ...
Hiding the extension, however, can create the appearance of two or more identical filenames in the same folder. For example, a company logo may be needed both in .eps format (for publishing) and .png format (for web sites). With the extensions visible, these would appear as the unique filenames: "CompanyLogo.eps" and "CompanyLogo.png".
The ability to read PNG images from ICO format images was introduced in Windows Vista. [7] A PNG image can be stored in the image in the same way as done for a standard Windows BMP format image, with the exception that the PNG image must be stored in its entirety, with its file header and must be in 32bpp ARGB format. [7]
Another route to convert a PS or EPS file (postscript) in PNG is to use ImageMagick, available on many operating systems. A single command is needed: convert -density 300 file.ps file.png The density parameter is the output resolution, expressed in dots per inch. With the standard 5x3.5in size of a gnuplot graph, this results in a 1500x1050 ...
In 2000, Microsoft released an initial version of an XML-based format for Microsoft Excel, which was incorporated in Office XP. In 2002, a new file format for Microsoft Word followed. [9] The Excel and Word formats—known as the Microsoft Office XML formats—were later incorporated into the 2003 release of Microsoft Office.