I just hacked a script that I previously hacked from another script... Hope it helps (there is both a save for web and save as version):
https://gist.github.com/MarshySwamp/597818a60c2210f849ccc21c0e5e30b7
https://gist.github.com/MarshySwamp/a5135a6281632ac3316b66546dc39775
In the save as version, I found very large file sizes using pngOptions.compression = 0
Any value from 1 - 9 was preferrable
#target photoshop
// Batch Export SfW sRGB PNG.jsx
displayDialogs = DialogModes.NO
// raw.githubusercontent.com/jonahvsweb/Photoshop-Automated-Resize-to-Web.jsx/master/Automated%20Resize%20To%20Web.jsx
if (BridgeTalk.appName == "photoshop") {
app.bringToFront;
var inputFolder = Folder.selectDialog("Select the source folder that contains the PSD files for PNG export:");
if (inputFolder != null) {
var fileList = inputFolder.getFiles(/\.(psd)$/i);
var outputFolder = inputFolder ;
for (var i = 0; i < fileList.length; i++) {
if (fileList[i] instanceof File) {
var document = open (fileList [i]);
var documentName = fileList [i].name.replace(/\.[^\.]+$/, ''); // Regex remove filename extension
while (app.documents.length) {
var newFile = new File(decodeURI(outputFolder) + "/" + documentName + ".png");
// document.flatten (); // Disable flatten image step
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
function ConvertTosRGBProfile() {
app.activeDocument.convertProfile("sRGB IEC61966-2.1", Intent.RELATIVECOLORIMETRIC, true, false);
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
exportOptions = new ExportOptionsSaveForWeb();
exportOptions.format = SaveDocumentType.PNG;
exportOptions.PNG8 = false; // false = PNG-24
exportOptions.transparency = true; // true = transparent
exportOptions.interlaced = false; // true = interlacing on
exportOptions.includeProfile = true; // false = don't embedd ICC profile
document.exportDocument(newFile, ExportType.SAVEFORWEB, exportOptions);
document.close(SaveOptions.DONOTSAVECHANGES);
}
}
if (i == fileList.length - 1) {
alert("All PSD files have been saved as PNG files!");
}
}
}
}
#target photoshop
// Batch Save As sRGB PNG.jsx
displayDialogs = DialogModes.NO
// raw.githubusercontent.com/jonahvsweb/Photoshop-Automated-Resize-to-Web.jsx/master/Automated%20Resize%20To%20Web.jsx
if (BridgeTalk.appName == "photoshop") {
app.bringToFront;
var inputFolder = Folder.selectDialog("Select the source folder that contains the PSD files for save as PNG:");
if (inputFolder != null) {
var fileList = inputFolder.getFiles(/\.(psd)$/i);
var outputFolder = inputFolder;
for (var i = 0; i < fileList.length; i++) {
if (fileList[i] instanceof File) {
var document = open(fileList[i]);
var documentName = fileList[i].name.replace(/\.[^\.]+$/, ''); // Regex remove filename extension
while (app.documents.length) {
var newFile = new File(decodeURI(outputFolder) + "/" + documentName + ".png");
// document.flatten (); // Disable flatten image step
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
function ConvertTosRGBProfile() {
app.activeDocument.convertProfile("sRGB IEC61966-2.1", Intent.RELATIVECOLORIMETRIC, true, false);
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
var pngOptions = new PNGSaveOptions();
pngOptions.compression = 0
pngOptions.interlaced = false;
app.activeDocument.saveAs(newFile, pngOptions, true, Extension.LOWERCASE);
app.activeDocument.close();
}
}
if (i == fileList.length - 1) {
alert("All PSD files have been saved as PNG files!");
}
}
}
}
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