Rectangular_to_square_js_photoshop.js

Rectangular_to_square_js_photoshop.js

var inputFolder = Folder.selectDialog("Select a folder to process");
var fileList = inputFolder.getFiles("*.jpg");

for(var i=0; i<fileList.length; i++) {
var doc = open(fileList[i]);

if (doc.width !== doc.height) {             // if document is not already square...
    if (doc.width > doc.height) {               // if width is greater...
        doc.resizeCanvas(doc.width, doc.width)   // use this value for both sides...
    } else {                                      // else use height for both sides...
        doc.resizeCanvas(doc.height, doc.height)      // so you always get a square.
    }
}

doc.save();
doc.close();
}