Re: [Gimp-developer] png save broken in gimp edge ppa - There was an invalid UTF-8 string in the exif:ImageDescription

Am Montag, 23. Mai 2016, 23:08:04 schrieb Jehan Pagès:



**    exif:ImageDescription: ..:\w.*

According to the Exif spec
(, even UTF-8
should be invalid. This field is supposed to be ASCII only apparently
(yes that's sucky, definitely). To use multi-byte encoding, such as
UTF-8 (or others such as JIS), the right field is UserComment.

To make matters worse, the MWG guidelines [0] state that "Exif tags documented 
in the Exif specification as type ASCII SHOULD be written as UTF-8".


All this said, it would be good if GIMP were more robust to
otherwise-valid images, even with buggy metadata. In particular, it
should not fail to export, but simply discard the wrong metadata field
with a warning.

Or just copy the content verbatim, there might be a reason for it being the 
way it is.

Could you please open a bug report about this issue so that we look
into this issue?





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