Before uploading images you should remove the metadata; more about this you can find here.

The binary exiv2 must be available on your system.

exivrm.desktop

[Desktop Entry]
ServiceTypes=KonqPopupMenu/Plugin,image/*
Type=Service
Actions=rmd;
X-KDE-ServiceTypes=KonqPopupMenu/Plugin
MimeType=application/octet-stream;
X-KDE-Submenu=MetaInformation
 
[Desktop Action rmd]
Name=Remove Meta-Data (exiv2)
Icon=
Exec=exiv2 rm %U