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December 2005
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2005.12.12 22:49 "Re: Writing EXIF data?", by Bob Friesenhahn
Recently, support was added in libtiff (in 3.7.3) to support tags in EXIF IFDs. Presumably it it is possible to create an EXIF IFD from scratch, or update an existing EXIF IFD, if you know what you are doing. Previous versions which supported TIFFTAG_EXIFIFD are very limited (as you describe), and older versions don't know anything about EXIF at all. So everything depends on what version of libtiff you are using. Bob ====================================== Bob Friesenhahn bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/