The "Exif Metadata Viewer" is a Chrome extension that allows you to read metadata headers in image, audio, video, and PDF files. Powered by the ExifTool library, this extension provides a comprehensive way to access metadata information in a wide range of file formats.

The Exif Metadata Viewer supports various types of metadata, including EXIF, GPS, IPTC, XMP, JFIF, MakerNotes, GeoTIFF, ICC Profile, Photoshop IRB, FlashPix, AFCP, ID3, and Lyrics3. This means you can easily access detailed information about your files, such as camera settings, location data, author information, and more.

One of the standout features of this extension is its ability to recognize thousands of different tags, making it a versatile tool for anyone working with multimedia files. Additionally, it can read maker notes on many digital cameras and timed metadata from MOV/MP4/M2TS/AVI videos. It also supports reading structured XMP information.