Portable Network Graphics

(redirected from Png file)

Portable Network Graphics

(file format)
/ping/ (PNG) An extensible file format for the lossless, portable, well-compressed storage of raster images. PNG provides a patent-free replacement for GIF and can also replace many common uses of TIFF. Indexed-colour, greyscale and truecolour images are supported, plus an optional alpha channel. Sample depths range from 1 to 16 bits.

PNG is designed for on-line viewing applications, such as the World Wide Web, so it is fully streamable with a progressive display option. PNG is robust, providing both full file integrity checking and simple detection of common transmission errors. Also, PNG can store gamma correction and chromaticity data for improved colour matching on heterogeneous platforms.

Filename extension: .png.

RFC 2083. W3C PNG pages. PNG home page.
Mentioned in ?
References in periodicals archive ?
Students simply submit a JPEG/JPG or PNG file (file size must not exceed 2MB) of their creative work along with a description (500 characters or fewer) of what the student hopes to achieve in his or her personal and professional life after college.
amp;nbsp;Once the design is done, users can download their masterpiece as a PNG file.
The child must be suitably clothed and the image must be JPEG or PNG file format.
To save the graph and extract it as a PDF, JPEG and PNG file or Excel for a tabular graph
This malware uses a suite of counter-forensic techniques to avoid detection and eventually downloads additional functionality hidden in a PNG file.
Scan the image with at least 600 dots-per-inch resolution, and make sure you save it as a TIF, BMP, or PNG file.
Colours and fonts can be changed and when you are finished you can save the image as a jpeg or png file straight to your documents.
Even though the structure is represented as a word, or as an image like a GIF file or a PNG file, thanks to SureChem you can actually draw a chemical structure and search in that way.
SpaceClaim LT provides import of STEP, IGES, DXF, DWG, BMP, JPG, and PNG file formats and export of DXF, DWG, XAML, STL, VRML, BMP, JPG, and PNG file formats.
And the optional bitmap module wizard translates any standard BMP, JPEG, GIF, or PNG file into a TracePro source file that can be ray-traced through any geometry, and then displayed on any surface as an irradiance or illuminance output.
Contest entry is as simple as submitting an image of uDraw-created artwork (in the PNG file format) for consideration.