Portable Network Graphics PNG
（重定向自Portable Network Graphic）
![](/Images/godic/202502/03/PNG_transparency_demonstration_12816.png"){kind=spacer}
![The PNG image viewed with a hex editor](/Images/godic/202502/03/PNG-Gradient_hex2817.png")
![example with several types of image content](/Images/godic/202502/03/PNG_demo_Banana2817.png")
![representation of bit cost per pixel for above PNG file](/Images/godic/202502/03/PNG_demo_heatmap_Banana2817.png")
Portable Network Graphics (PNG /ˈpɪŋ/) is a raster graphics file format that supports lossless data compression. PNG was created as an improved, non-patented replacement for Graphics Interchange Format (GIF), and is the most used lossless image compression format on the Internet.