https://bugs.kde.org/show_bug.cgi?id=242017
Madhav Kanbur <abcd...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
CC| |abcd...@gmail.com
Status|REPORTED |CONFIRMED
--- Comment #8 from Madhav Kanbur <abcd...@gmail.com> ---
PNG stores metadata in "chunks" (key-value pairs) instead of EXIF. Gwenview
uses the exiv2 library for extracting image metadata.
The problem now, is that there are two keys of interest when it comes to
comments -
1. Description
2. Comment
Read more about them here - http://www.vias.org/pngguide/chapter11_04.html
exiv2 deals only with the "Description" key and ignores the "Comment" key -
https://github.com/Exiv2/exiv2/blob/68d65d0f0c41b0c4f9411354d5fa0d15641ac087/src/pngchunk_int.cpp#L384
It seems that most applications (GIMP, convert etc.) prefer using the "Comment"
key.
Also, I tried compiling exiv2 from source after making changes on L387 and that
fixed the problem. So either we add some png specific code to gwenview or raise
an issue upstream.
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