How to delete the raw-data out of the meta data (file information)

Question

Hi guys,
I am definetely going crazy: since half an hour I can´t find a solution than copy (image) paste and save as a virgin jpeg: I`ve just converted some 0,5 GB tif files which I elaborated heavily in ACR and the 550 by 367 PIXEL JPEG @ quality 9 has 1,1 MB. As all your moves are saved in the raw-data (last field inthe fileinformation) there´s quite a bit on the file, also on 3 by 2 Pixel (!) "big" derivates. It seem´s there´s no intellegent way to discard this information. If you know, please let me know!
Thanks, Sebastian

Answer 1

You could try the following code to remove all the metadata, run it from within ExtendScript Toolkit and select the files in Bridge.
#target bridge
removeXMPData();
function removeXMPData(){
if (ExternalObject.AdobeXMPScript == undefined) ExternalObject.AdobeXMPScript = new ExternalObject("lib:AdobeXMPScript");
var sels = app.document.selections;
for (var a in sels){
var thumb = new  Thumbnail(app.document.selections[a]);
var md = thumb.synchronousMetadata;
var xmp = new XMPMeta(md.serialize());
        try{
        XMPUtils.removeProperties(xmp, "", "", XMPConst.REMOVE_ALL_PROPERTIES);
        var updatedPacket = xmp.serialize(XMPConst.SERIALIZE_OMIT_PACKET_WRAPPER | XMPConst.SERIALIZE_USE_COMPACT_FORMAT);
        thumb.metadata = new Metadata(updatedPacket);
        }catch(e){alert(e);}