exiv2

Exiv2 is a free and open-source C++ library and command-line utility for managing image metadata. It supports a wide range of image formats, including JPEG, TIFF, PNG, and RAW files, and can read, write, delete, and manipulate metadata stored in these formats. The library is designed to be efficient and easy to use, making it suitable for both simple and complex metadata operations.

Exiv2 provides a comprehensive set of features for handling image metadata, including support for EXIF, IPTC, and XMP metadata standards. It allows users to extract metadata from images, modify existing metadata, and add new metadata tags. The library also supports geotagging, enabling users to embed geographical information into their images.

The command-line utility provided by Exiv2 allows users to perform metadata operations directly from the terminal. This can be particularly useful for batch processing of images or for users who prefer a command-line interface. The utility supports a wide range of options and commands, making it a versatile tool for managing image metadata.

Exiv2 is licensed under the GNU General Public License (GPL), ensuring that it remains free and open-source software. The project is actively maintained and developed by a community of contributors, with regular updates and improvements to the library and command-line utility. The official website for Exiv2 provides documentation, download links, and community support for users and developers.