exportOptionsPNG24.antiAliasing not working

[Patrick-clone]

I want to export a PNG24 without anti aliasing via a custom written extension.

But the option exportOptionsPNG24.antiAliasing = false does not in practice omit the anti aliasing when exporting a PNG24.

Example script:

function exportFileToPNG24(dest) {
  if (app.documents.length > 0) {
    var exportOptions = new ExportOptionsPNG24();
    exportOptions.antiAliasing = false;
    exportOptions.transparency = false;
    
    var type = ExportType.PNG24;
    var fileSpec = new File(dest);
    
    app.activeDocument.exportFile(fileSpec, type, exportOptions);
  }
}

[Patrick-clone]

I've found a solution to my problem, thanks to this post.

var dest = app.activeDocument.path;

var exportOptions = new ExportOptionsPNG24();
var type = ExportType.PNG24;
exportOptions.artBoardClipping = true;
exportOptions.antiAliasing = false;
exportOptions.transparency = false;
exportOptions.saveAsHTML = false;

var rasterizeOptions = new RasterizeOptions();
rasterizeOptions.antiAliasingMethod = AntiAliasingMethod.None;
rasterizeOptions.backgroundBlack = false;
rasterizeOptions.clippingMask = false;
rasterizeOptions.resolution = 72.0;
rasterizeOptions.transparency = false;
rasterizeOptions.convertSpotColors = true;

var fileExport = new File(dest);
var tmpLayer = app.activeDocument.layers.add();
var tmpGroup = tmpLayer.groupItems.add();

var pathItemsList = [];
for (var i = 0; i < app.activeDocument.pathItems.length; i++) {
    if(!app.activeDocument.pathItems[i].hidden && !app.activeDocument.pathItems[i].clipping){
        pathItemsList.push(app.activeDocument.pathItems[i]);
    }
}

for (var i = pathItemsList.length - 1; i >= 0; i--) {
    var pathItem = pathItemsList[i].duplicate(tmpGroup, ElementPlacement.PLACEATBEGINNING);
}

var tmpRast = app.activeDocument.rasterize(tmpGroup, app.activeDocument.artboardRect, rasterizeOptions);
app.activeDocument.exportFile( fileExport, type, exportOptions );
tmpRast.remove();
tmpLayer.remove();