Here is a simple modification to the skeleton framework script that I mentioned.
It saves in layered TIFF format, but that is easy enough to change.
All it does is create and save a layer stack of 3 alphabetically sorting files. You can change line 121 & 122 to reference an action that will resize the canvas and reposition the images etc, just change the action and action set names ("My Action", "My Action Set").
/*
https://community.adobe.com/t5/photoshop-ecosystem/script-with-source-from-a-folder/td-p/12227396
Script with source from a folder
Stephen Marsh - 2021
Based on a generic "framework" skeleton script to help fast-track development of similar scripts
- Input files to be alpha/numeric sorting
- Source files are expected to only have a single layer
- An action and action set will need to be set to process the stacked layers
*/
#target photoshop
if (app.documents.length === 0) {
try {
// Save and disable dialogs
var restoreDialogMode = app.displayDialogs;
app.displayDialogs = DialogModes.NO;
// Call the main script function
batchSetProcessing();
// Main script function
function batchSetProcessing() {
// Select the input folder
inputFolder = Folder.selectDialog('Please select the folder with files to process');
if (inputFolder === null) return;
// Limit the file format input, add or remove as required
var fileList = inputFolder.getFiles(/\.(png|jpg|jpeg|tif|tiff|psd|psb)$/i);
// Force alpha-numeric list sort
// Use .reverse() for the first filename in the merged file
// Remove .reverse() for the last filename in the merged file
fileList.sort().reverse();
//////////////////////////// Static Set Quantity - No GUI ////////////////////////////
var setQty = 3;
//////////////////////////////////////////////////////////////////////////////////////
// or...
//////////////////////////// Variable Set Quantity - GUI /////////////////////////////
/* Loop the input prompt until a number is entered
var origInput;
while (isNaN(origInput = prompt('Enter the number of files per set:', '3')));
// Test if cancel returns null, then terminate the script
if (origInput === null) {
alert('Script cancelled!');
return
}
// Test if an empty string is returned, then terminate the script
if (origInput === '') {
alert('A value was not entered, script cancelled!');
return
}
// Convert decimal input to integer
var setQty = parseInt(origInput);
*/
//////////////////////////////////////////////////////////////////////////////////////
// Validate that the file list is not empty
var inputCount = fileList.length;
var cancelScript1 = (inputCount === 0);
if (cancelScript1 === true) {
alert('Zero input files found, script cancelled!');
return;
}
// Validate the input count vs. output count
// Thanks to Kukurykus for the advice to test using % modulus
var cancelScript2 = !(inputCount % setQty);
alert(inputCount + ' input files stacked into sets of ' + setQty + ' will produce ' + inputCount / setQty + ' output files.');
// Test if false, then terminate the script
if (cancelScript2 === false) {
alert('Script cancelled as the quantity of input files are not evenly divisible by the set quantity.');
return;
}
// Create the output sub-directory
var outputFolder = Folder(decodeURI(inputFolder + '/' + 'Button'));
if (!outputFolder.exists) outputFolder.create();
// Loop through and open the file sets
while (fileList.length) {
// Sets of N quantity files
for (var a = 0; a < setQty; a++) {
try {
app.open(fileList.pop());
} catch (e) { }
}
////////////////////////////////// Start doing stuff //////////////////////////////////
// Set the base doc layer name
app.activeDocument = documents[0];
docNameToLayerName();
// Stack all open docs to the base doc
while (app.documents.length > 1) {
app.activeDocument = documents[1];
docNameToLayerName();
app.activeDocument.activeLayer.duplicate(documents[0]);
app.activeDocument = documents[0];
app.documents[1].close(SaveOptions.DONOTSAVECHANGES);
}
function docNameToLayerName() {
var layerName = app.activeDocument.name.replace(/\.[^\.]+$/, '');
app.activeDocument.activeLayer.name = layerName;
}
// Do something with the layer stack, either script or action based...
var actionName = "My Action"; // Action to run
var actionSet = "My Action Set"; // Action set to run
app.doAction(actionName, actionSet);
////////////////////////////////// Finish doing stuff //////////////////////////////////
// Save name + suffix & save path
var Name = app.activeDocument.name.replace(/\.[^\.]+$/, '');
var saveFile = File(outputFolder + '/' + Name + '_x' + setQty + '-Sets' + '.tif');
// Call the save function
saveTIFF(saveFile);
function saveTIFF(saveFile) {
tiffSaveOptions = new TiffSaveOptions();
tiffSaveOptions.embedColorProfile = true;
tiffSaveOptions.byteOrder = ByteOrder.IBM;
tiffSaveOptions.transparency = true;
// Change layers to false to save without layers
tiffSaveOptions.layers = true;
tiffSaveOptions.layerCompression = LayerCompression.ZIP;
tiffSaveOptions.interleaveChannels = true;
tiffSaveOptions.alphaChannels = true;
tiffSaveOptions.annotations = true;
tiffSaveOptions.spotColors = true;
tiffSaveOptions.saveImagePyramid = false;
// Image compression = NONE | JPEG | TIFFLZW | TIFFZIP
tiffSaveOptions.imageCompression = TIFFEncoding.TIFFLZW;
// Save as
app.activeDocument.saveAs(saveFile, tiffSaveOptions, true, Extension.LOWERCASE);
}
// Close all open files without saving
while (app.documents.length) {
app.activeDocument.close(SaveOptions.DONOTSAVECHANGES);
}
}
// Restore saved dialogs
app.displayDialogs = restoreDialogMode;
// End of script notification
// Ensure that the following file format filter matches the save format
var outputList = outputFolder.getFiles(/\.(tif|tiff)$/i);
app.beep();
alert('Script completed!' + '\n' + outputList.length + ' combined files saved to:' + '\n' + outputFolder.fsName);
// Open the output folder
outputFolder.execute();
}
} catch (e) {
// Restore saved dialogs
app.displayDialogs = restoreDialogMode;
alert("If you see this message, something went unexpectedly wrong!")
}
}
else {
alert('Attention:' + '\n' + 'Please close all open documents before running this script!');
}
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