Scripts/Image Processor

@NigelD1 

So, how did you go with the scripts?

Dilshad/Stephen, thank you for your replies. I'll take a look at these scripts and see how I get on.

@Dilshad Mansha – parts of that script look very familiar to me!  :]

Here's a Photoshop script with a user interface (UI) for converting images to the WebP format, allowing you to customize compression settings and include metadata.

/*
Batch Save As WebP.jsx
https://community.adobe.com/t5/photoshop-ecosystem-ideas/scripts-image-processor/idi-p/15067404
v1.0 - 01th January 2025. Dilshad Mansha
*/

//target photoshop

function main() {
    if (parseInt(app.version.split(".")[0]) < 23) {
        alert("You must use Photoshop 2022 or later to save using native WebP format...");
        return;
    }

    // Create the UI dialog
    var dlg = new Window("dialog", "WebP Exporter");
    dlg.orientation = "column";
    
    // Input Folder
    dlg.add("statictext", undefined, "Select Input Folder:");
    var inputFolderBtn = dlg.add("button", undefined, "Browse...");
    var inputFolderText = dlg.add("edittext", [0, 0, 300, 20], "", {readonly: true});

    inputFolderBtn.onClick = function () {
        var folder = Folder.selectDialog("Please select the input folder:");
        if (folder) inputFolderText.text = folder.fsName;
    };

    // Output Folder
    dlg.add("statictext", undefined, "Select Output Folder:");
    var outputFolderBtn = dlg.add("button", undefined, "Browse...");
    var outputFolderText = dlg.add("edittext", [0, 0, 300, 20], "", {readonly: true});

    outputFolderBtn.onClick = function () {
        var folder = Folder.selectDialog("Please select the output folder:");
        if (folder) outputFolderText.text = folder.fsName;
    };

    // Compression Settings
    dlg.add("statictext", undefined, "Compression Quality (0-100):");
    var qualitySlider = dlg.add("slider", [0, 0, 300, 20], 75, 0, 100);

    dlg.add("statictext", undefined, "Include Metadata:");
    var includeXMP = dlg.add("checkbox", undefined, "Include XMP Data");
    var includeEXIF = dlg.add("checkbox", undefined, "Include EXIF Data");
    var includePSExtras = dlg.add("checkbox", undefined, "Include Photoshop Extras");

    includeXMP.value = true;
    includeEXIF.value = true;
    includePSExtras.value = true;

    // Buttons
    var btnGroup = dlg.add("group");
    var runBtn = btnGroup.add("button", undefined, "Run");
    var cancelBtn = btnGroup.add("button", undefined, "Cancel");

    runBtn.onClick = function () {
        if (!inputFolderText.text || !outputFolderText.text) {
            alert("Please select both input and output folders.");
            return;
        }
        dlg.close(1);
        processFiles(inputFolderText.text, outputFolderText.text, qualitySlider.value, includeXMP.value, includeEXIF.value, includePSExtras.value);
    };

    cancelBtn.onClick = function () {
        dlg.close(0);
    };

    dlg.center();
    dlg.show();
}

function processFiles(inputFolderPath, outputFolderPath, quality, xmp, exif, psExtras) {
    var inputFolder = new Folder(inputFolderPath);
    var outputFolder = new Folder(outputFolderPath);

    if (!inputFolder.exists || !outputFolder.exists) {
        alert("Invalid folders selected.");
        return;
    }

    var fileList = inputFolder.getFiles(/\.(webp|tif|tiff|jpg|jpeg|psd|psb|png)$/i);
    if (fileList.length === 0) {
        alert("No supported files found in the input folder.");
        return;
    }

    app.displayDialogs = DialogModes.NO;
    var fileCounter = 0;

    for (var i = 0; i < fileList.length; i++) {
        try {
            var doc = open(fileList[i]);
            if (activeDocument.mode !== DocumentMode.RGB) {
                activeDocument.convertProfile("sRGB IEC61966-2.1", Intent.RELATIVECOLORIMETRIC, true, false);
                activeDocument.changeMode(ChangeMode.RGB);
                activeDocument.bitsPerChannel = BitsPerChannelType.EIGHT;
            } else {
                activeDocument.bitsPerChannel = BitsPerChannelType.EIGHT;
            }

            saveWebP(outputFolder, quality, xmp, exif, psExtras);
            activeDocument.close(SaveOptions.DONOTSAVECHANGES);
            fileCounter++;
        } catch (e) {
            alert("Error processing file: " + fileList[i].fsName);
        }
    }

    app.displayDialogs = DialogModes.ALL;
    alert("Script completed!\n" + fileCounter + " files saved to: \n" + outputFolder.fsName);
}

function saveWebP(outputFolder, quality, xmp, exif, psExtras) {
    var WebPDocName = activeDocument.name.replace(/\.[^\.]+$/, '');
    var WebPSavePath = outputFolder + "/" + WebPDocName + ".webp";
    var WebPFile = new File(WebPSavePath);

    function s2t(s) {
        return app.stringIDToTypeID(s);
    }

    var descriptor = new ActionDescriptor();
    var descriptor2 = new ActionDescriptor();

    descriptor2.putEnumerated(s2t("compression"), s2t("WebPCompression"), s2t("compressionLossy"));
    descriptor2.putInteger(s2t("quality"), quality);
    descriptor2.putBoolean(s2t("includeXMPData"), xmp);
    descriptor2.putBoolean(s2t("includeEXIFData"), exif);
    descriptor2.putBoolean(s2t("includePsExtras"), psExtras);

    descriptor.putObject(s2t("as"), s2t("WebPFormat"), descriptor2);
    descriptor.putPath(s2t("in"), WebPFile);
    descriptor.putBoolean(s2t("copy"), true);
    descriptor.putBoolean(s2t("lowerCase"), true);

    executeAction(s2t("save"), descriptor, DialogModes.NO);
}

main();