Replace existing IPTC and keep EXIF data ?

[jgautier2]

Hello,

First question : is there a way to replace existing IPTC data with new ones using Image_Iptc ?
I've tried to do that, but It seems that only new IPTC tags can be written into file.

To be able to replace existing tags, I've used removeAllTags public function.
But - second question - this function seems to remove every meta data from the file, including Exif data. Is there a way to remove only one IPTC tag, or to keep EXIF data safe ?

Anyway, my main goal is to be able to replace existing IPTC.

Thanks a lot for your help.

JG