CR2 (Canon camera filetype) is a raw image format that allows users to save an image file in its original raw format. The saved raw files do not have immediate viewing access, like JPG or PNG files. The key feature of crw file is that it contains all the information captured by the camera sensor, making it much easier to post-edit any picture. Most importantly, there is no loss of quality even after editing, which can be challenging with JPEG format.

.png (Portable Network Graphics) The .png format is a raster graphics file format that supports lossless data compression. PNG files are widely used on the internet due to their efficient compression and support for transparent backgrounds.