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Most of the time! PNG is a very versatile image format and is generally good in any situation. It’s a safe choice. It’s compact for an image format and supported well by both Web browsers and desktop applications such as Microsoft Office. It is a better choice than GIF for line-art and illustrations which do not contain many colors and it is an equally good choice for high-color images like scans and photos. It supports transparency. At the high-end, JPEG may still be a better choice for detailed photographs and realistic pictures. It’s good to do a few experiments with your images by converting them to both JPEG and PNG-24 and then judge quality versus file size/load time to make your choice.