What's a PNG image file?

Henry0Reilly

January 17, 2008 11:44

I've heard of jpg, gif, and bmp but what is png ?

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7 comments

tysonagreen

January 17, 2008 12:03
Portable Network Graphics
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Portable Network Graphics

A PNG image with an 8-bit transparency channel (top). The same image is overlaid onto a checkered background (bottom), typically used with graphics software to denote the transparency.
File extension: .png
MIME type: image/png
Type code: PNGf
Uniform Type Identifier: public.png
Developed by: PNG Development Group (donated to W3C)
Type of format: lossless bitmap image format
Extended to: APNG, JNG and MNG
Standard(s): ISO 15948, IETF RFC 2083
Portable Network Graphics (PNG) is a bitmapped image format that employs lossless data compression. PNG was created to improve upon and replace the GIF format, as an image-file format not requiring a patent license. PNG is pronounced /#712;p#618;c_/ ping).[1] The PNG initialism is optionally recursive, unofficially standing for ??PNG's Not GIF??.[2]

PNG supports palette-based (palettes of 24-bit RGB colors) or greyscale or RGB images. PNG was designed for transferring images on the Internet, not professional graphics, and so does not support other color spaces (such as CMYK).

PNG files nearly always use file-extension "PNG" or "png" and are assigned MIME media type "image/png" (approved October 14, 1996).
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dcon12

January 17, 2008 12:16
I thought it meant "PUZZY NO GOOD" Don
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Gordo77

January 17, 2008 14:24
quote:Originally posted by dcon12
I thought it meant "PUZZY NO GOOD" Don

LMAO!
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bpost

January 17, 2008 14:29
quote:Originally posted by dcon12
I thought it meant "PUZZY NO GOOD" Don

Reverse photo to inspect.
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RUGERGUNZ

January 17, 2008 14:33
You stole my plumber!!!! [;)]
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Flyin_Paulie

January 17, 2008 15:02
Macromedia Fireworks produces PNG files. This type of file is web-friendly, but not as small as a low-res JPEG (Joint photographic experts) file. A GIF (graphic interchange file) file is usually the larger of all three of these file types. It's sometimes referred to as a "bitmap" file. A JPEG file is referred to as a "lossy" file in that the quality of the image deteriorates as the file is copied and used over and over.[:)]
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stevenrayspeck

January 17, 2008 15:39
quote:Originally posted by bpost1958
quote:Originally posted by dcon12
I thought it meant "PUZZY NO GOOD" Don

Reverse photo to inspect.

ROTFLMAO!!!!!!![:D][:D][:D]
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What's a PNG image file?

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