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This format is used for storing bitmap images in an Adobe Photoshop project file. It is stored in uncompressed form, and it includes color spaces, layers with masks, two-color settings, layer structures and other data that allow bitmap photos to be finely edited.

PNG is a raster graphic data storage format that uses lossless compression algorithm to Deflate. PNG was created as a free format to replace GIF. PNG supports three main types of raster images: grayscale image, a color indexed image and the color image. PNG format stores graphical information in a compressed form.