Exiv2 is a C++ library and a command line utility to manage image metadata.
It provides fast and easy read and write access to the Exif, IPTC and XMP metadata of images in many formats.
Exiv2 is free and open source software.
Features of the command-line utility include:
- Print Exif, IPTC and XMP image metadata in different formats: Exif summary info, interpreted values, or the plain data for each tag
- Print the structure of images. This is useful for image file analysis.
- Set, add and delete Exif, IPTC, XMP metadata and ICC profile from command line modify commands or command scripts
- Adjust the Exif timestamp (that’s how it all started…)
- Rename Exif image files according to the Exif timestamp
- Extract, insert and delete Exif, IPTC and XMP metadata and JPEG comments
- Convert from Exif and IPTC to XMP properties and vice versa
- Extract previews from RAW images and thumbnails from the Exif metadata
- Insert and delete the thumbnail image embedded in the Exif metadata
- Print, set and delete the JPEG comment of JPEG images
- Fix the Exif ISO setting of picture taken with Canon and Nikon cameras
- Metadata and ICC Profiles can be very conveniently piped on the command-line from one image to others.
Features of the C++ library include:
- Fast read and write access to the Exif, IPTC and XMP metadata of an image.
- Easy to use and extensively documented C++ API.
- Conversions of Exif and IPTC metadata to XMP and vice versa.
- Smart IPTC implementation that does not affect data that programs like Photoshop store in the same image segment.
- Exif Makernote support:
- Makernote tags can be read and written just like any other metadata.
- Sophisticated write algorithm avoids corrupting the Makernote.
- Simple interface to extract previews embedded in RAW images and Exif thumbnails.
- Set and delete methods for Exif thumbnails.
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