Possible through "Adobe Bridge scripting"

#target bridge

var sels = app.document.selections[0];

var md = sels.metadata;

md.namespace = "http://ns.adobe.com/xap/1.0/";

var myCreator = md.read("http://ns.adobe.com/xap/1.0/", "xap:CreatorTool");

$.writeln ("File was created by " + myCreator);

var myModifyDate = md.read("http://ns.adobe.com/xap/1.0/", "xap:ModifyDate");

$.writeln ("File was modified at " + myModifyDate);

// Let's write some info into IPTC Contact panel (IPTC Core in Metadata panel)

md.namespace = "http://iptc.org/std/Iptc4xmpCore/1.0/xmlns/";

md.CiAdrCity = "Kiev";

md.CiAdrCtry = "Ukraine";