Libexif-gtk (provides GTK+ widgets to display/edit EXIF tags) Most digital cameras produce EXIF files, which are JPEG files with extra tags that contain information about the image. The EXIF library allows you to parse an EXIF file and read the data from those tags. This library provides GTK+ widgets to display/edit EXIF tags. NOTE: If you are building against gtk+-2.12.x, you will need to uncomment the patch that re-enables deprecated calls. On a stock 12.0 system, this is not an issue, so don't enable the patch.