Bridge incorrectly alters the metadata in PNG files to remove the ICC profile tag after purging cache.
Steps to reproduce:
Bridge 11.1.1, Photoshop 22.5, Windows 10 Pro 21H1
1. Save a PNG file from Photoshop with ICC profile embedded.
2. View in Bridge, File Info->Raw Data
3. Right click->Purge cache for selection
4. View in Bridge, File Info->Raw Data
Expected: ICC profile tag intact
Actual: ICC profile tag removed
Note that when opened in Photoshop, PS File Info shows the ICC profile tag intact and PS correctly identifies the profile.
Example screenshots before/after cache purge. This is a PNG file with profile saved in Photoshop 22.5. Also tested with a Bridge script that writes the XMP tag to file metadata.
For completeness, this Bridge script will add an ICC profile to PNG files:
#target bridge
main()
function main(){
try{
if(app.document.selectionLength > 0){ //test for no selection
var thumbs = app.document.getSelection('png'); //get selected files of enumerated types
}
else{
alert('No files selected! Please select supported image files to enable export.');
thumbs = null;
return;
}
if(thumbs.length != 0){ //are any valid files selected
if(ExternalObject.AdobeXMPScript == undefined) ExternalObject.AdobeXMPScript = new ExternalObject('lib:AdobeXMPScript'); //load library for metadata
var fileMeta = thumbs[0].synchronousMetadata; //new metadata object
var xmp = new XMPMeta(fileMeta.serialize());
for(var a = 0; a < thumbs.length; a++){
fileMeta = thumbs[a].synchronousMetadata; //new metadata object
xmp = new XMPMeta(fileMeta.serialize());
xmp.setProperty('http://ns.adobe.com/photoshop/1.0/', 'ICCProfile', 'sRGB IEC61966-2.1', 0); //set ICC profile tag
var updatedPacket = xmp.serialize(XMPConst.SERIALIZE_OMIT_PACKET_WRAPPER | XMPConst.SERIALIZE_USE_COMPACT_FORMAT); //write updated XMP
thumbs[a].metadata = new Metadata(updatedPacket); //save to file
}
}
}
catch(e){
alert(e + ' ' + e.line);
}
}
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