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Description
It provides fast and easy read and write access to the Exif, IPTC and XMP metadata of images in various formats. Exiv2 is available as free software and with a commercial license, and is used in many projects.
The Exiv2 library provides
# fast read and write access to the Exif, IPTC, and XMP metadata of an image # an easy to use and extensively documented API # conversions of Exif and IPTC metadata to XMP and vice versa # a 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 * a sophisticated write algorithm avoids corrupting the Makernote
# a simple interface to extract previews embedded in RAW images and Exif thumbnails # set and delete methods for Exif thumbnails
Exiv2 is also a command line utility to
* print Exif, IPTC and XMP image metadata in different formats: Exif summary info, interpreted values, or the plain data for each tag (a sample is here) * set, add and delete Exif, IPTC and XMP image metadata 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 * 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
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