Not all browsers will properly display all image formats (e.g., Firefox supports APNG, but Internet Explorer does not, and Chrome requires an extension). The trouble with using lesser-known versions of JPEG and PNG comes down to support. And though PNGs do not support animations like GIFs do, there is APNG, a nonstandard offshoot of PNG that allow animation. For example, JPEGs do not support HDR, but there is an unofficial JPEG-HDR. There are many lesser-known alternate versions of JPEG and PNG. Moreover, color indexing is available for 1-8bit PNGs but is not supported at all in JPEG. Separating the two is the fact that PNGs support image transparency, while JPEGs do not. Neither format supports animation, layers, or HDR. They support comparable levels of color depth and carry support for metadata, interlacing, and color management. JPEGs and PNGs are similar in several ways. Most web browsers and productivity suites No, but parts of the technology, including its compression methods, have been the subject of multiple patent lawsuits. Line art images with text transparent images Photographs photorealistic images with a lot of colors Supports color management through the inclusion of ICC color space profiles