Just wondering how I can upload vector files to iStock and have the IPTC/XMP keyword metadata read upon upload?

I did a test this morning. My JPG file already had keyword metadata added by Adobe Bridge. DeepMeta was successful in reading the metadata. While esp.gettyimages.com did not read the metadata. How do I get esp.gettyimages.com to read the metadata? Yes I understand I have already discovered a workable path via DeepMeta. I'm more just exploring my options right now. Sometimes I prefer to use esp.gettyimages.com for different reasons.

Edit: I just tried putting the keywords also in the metadata of the eps file and esp.gettyimages.com also did not read it from there either. So perhaps there is no way to get esp.gettyimages.com to read the metadata for vectors. Thus DeepMeta seems to be the only way.