Re: Adding metadata alters (reduces) image file size.

Posted by on May 16, 2020; 12:38pm
URL: http://digikam.185.s1.nabble.com/Adding-metadata-alters-reduces-image-file-size-tp4712412p4712477.html

This is the best theory I've found: https://photo.stackexchange.com/questions/101267/editing-jpeg-with-windows-photo-viewer-gives-strange-results

Seems maybe some metadata, potentially thumbnails, are being blown away.  Not surprised that Windows does this on its own, but a little more surprised that digiKam alters the file this way when all it should be doing is storing the metadata and not touching anything else.