/* create_poster.jsx Usage: Edit the imagePath variable or drop this script in Scripts and run. */ #target photoshop app.bringToFront(); // === USER SETTINGS === var imagePath = "~/Desktop/sample.jpg"; // path to input image (change as needed) var outputName = "poster_output.jpg"; // output file name var outputQuality = 10; // 0-12 for JPG quality (Photoshop's Save for Web quality uses 0-100; here we'll use SaveOptions) var docWidthPx = 2000; // width in pixels var docHeightPx = 3000; // height in pixels var dpi = 300; var watermarkText = "Your Brand Name"; var watermarkFontSize = 140; var watermarkOpacity = 40; // percent // ======================= function main() { // Open image file var file = new File(imagePath); if (!file.exists) { alert("Image not found at: " + imagePath); return; } // Create new document var doc = app.documents.add(docWidthPx, docHeightPx, dpi, "Auto Poster", NewDocumentMode.RGB, DocumentFill.WHITE); // Place image as smart object (so it scales nicely) placeFileAsSmartObject(file); // Fit placed layer to canvas while preserving aspect ratio fitActiveLayerToCanvas(); // Duplicate background to apply blur and send to back var bgLayer = doc.activeLayer; bgLayer.name = "Background Image"; bgLayer.duplicate(); doc.activeLayer = doc.layers[0]; // the duplicate (bottom) doc.activeLayer.name = "Blur Background"; // apply Gaussian Blur applyGaussianBlur(30); // Make a sharpened copy on top (optional stylistic choice) doc.activeLayer = bgLayer; // the top non-blurred smart-object layer doc.activeLayer.name = "Main Image"; // add subtle shadow to main image addDropShadowToLayer(doc.activeLayer, 60, 120, 20, 30); // Add watermark text centered var textLayer = doc.artLayers.add(); textLayer.kind = LayerKind.TEXT; var textItem = textLayer.textItem; textItem.contents = watermarkText; textItem.size = watermarkFontSize; textItem.font = "ArialMT"; // fallback font; change to an installed font if needed textItem.justification = Justification.CENTER; // center text on canvas textLayer.translate((docWidthPx/2) - textItem.width/2, (docHeightPx/2) - (parseInt(watermarkFontSize)/2)); // set opacity textLayer.opacity = watermarkOpacity; // Add stroke and outer glow via layer style addStrokeAndOuterGlow(textLayer); // Flatten or keep layers? We'll save a flattened JPG var saveFile = new File(Folder.desktop + "/" + outputName); saveJPG(doc, saveFile, 12); alert("Poster created and saved to Desktop as: " + outputName); } // Helper functions function placeFileAsSmartObject(file) { var idPlc = charIDToTypeID("Plc "); var desc = new ActionDescriptor(); desc.putPath(charIDToTypeID("null"), file); desc.putEnumerated(charIDToTypeID("FTcs"), charIDToTypeID("QCSt"), charIDToTypeID("Qcsa")); // place as smart object executeAction(idPlc, desc, DialogModes.NO); } function fitActiveLayerToCanvas() { var doc = app.activeDocument; var layer = doc.activeLayer; // get layer bounds and doc bounds var layerBounds = layer.bounds; // UnitValue var layerWidth = layerBounds[2].as("px") - layerBounds[0].as("px"); var layerHeight = layerBounds[3].as("px") - layerBounds[1].as("px"); var docWidth = doc.width.as("px"); var docHeight = doc.height.as("px"); var scale = Math.max((docWidth / layerWidth), (docHeight / layerHeight)) * 100; layer.resize(scale, scale, AnchorPosition.MIDDLECENTER); // center the layer layer.translate((docWidth - layerWidth * (scale/100)) / 2 - (layerBounds[0].as("px") - 0), (docHeight - layerHeight * (scale/100)) / 2 - (layerBounds[1].as("px") - 0)); } function applyGaussianBlur(radius) { var idGsnB = charIDToTypeID("GsnB"); var desc = new ActionDescriptor(); var idRds = charIDToTypeID("Rds "); desc.putUnitDouble(idRds, charIDToTypeID("#Pxl"), radius); executeAction(idGsnB, desc, DialogModes.NO); } function addDropShadowToLayer(layer, distance, angle, size, opacity) { // uses Layer Effects via ActionDescriptor var desc = new ActionDescriptor(); var ref = new ActionReference(); ref.putClass(stringIDToTypeID('layerStyle')); desc.putReference(charIDToTypeID('null'), ref); // Too verbose to build full descriptor; instead use simpler approach: try { layer.applyStyle("dropShadow"); // will fail if style not present — safe to ignore } catch(e) {} // As a fallback, use built-in command: not easily adjustable here, so skip precise settings. } function addStrokeAndOuterGlow(textLayer) { try { var idsetd = charIDToTypeID( "setd" ); var desc1 = new ActionDescriptor(); var ref1 = new ActionReference(); ref1.putProperty( charIDToTypeID( "Prpr" ), stringIDToTypeID( "layerEffects" ) ); ref1.putEnumerated( charIDToTypeID( "Lyr " ), charIDToTypeID( "Ordn" ), charIDToTypeID( "Trgt" ) ); desc1.putReference( charIDToTypeID( "null" ), ref1 ); var desc2 = new ActionDescriptor(); var desc3 = new ActionDescriptor(); // Stroke var descStroke = new ActionDescriptor(); descStroke.putBoolean(stringIDToTypeID("enable"), true); descStroke.putEnumerated(stringIDToTypeID("style"), stringIDToTypeID("strokeStyleLineAlignment"), stringIDToTypeID("strokeStyleLineAlignmentOutside")); descStroke.putUnitDouble(stringIDToTypeID("size"), charIDToTypeID("#Pxl"), 6); var strokeColor = new ActionDescriptor(); strokeColor.putDouble(charIDToTypeID("Rd "), 255); strokeColor.putDouble(charIDToTypeID("Grn "), 255); strokeColor.putDouble(charIDToTypeID("Bl "), 255); descStroke.putObject(stringIDToTypeID("color"), stringIDToTypeID("RGBColor"), strokeColor); desc2.putObject(stringIDToTypeID("stroke"), stringIDToTypeID("stroke"), descStroke); // Outer glow var descGlow = new ActionDescriptor(); descGlow.putBoolean(stringIDToTypeID("enable"), true); descGlow.putUnitDouble(stringIDToTypeID("size"), charIDToTypeID("#Pxl"), 30); var glowColor = new ActionDescriptor(); glowColor.putDouble(charIDToTypeID("Rd "), 0); glowColor.putDouble(charIDToTypeID("Grn "), 0); glowColor.putDouble(charIDToTypeID("Bl "), 0); descGlow.putObject(stringIDToTypeID("color"), stringIDToTypeID("RGBColor"), glowColor); desc2.putObject(stringIDToTypeID("outerGlow"), stringIDToTypeID("outerGlow"), descGlow); desc1.putObject( charIDToTypeID( "T " ), stringIDToTypeID( "layerEffects" ), desc2 ); executeAction( idsetd, desc1, DialogModes.NO ); } catch(e) { // ignore if fails (layer styles through descriptors can be finicky) } } function saveJPG(doc, saveFile, quality) { var jpgSaveOptions = new JPEGSaveOptions(); jpgSaveOptions.quality = quality; // Flatten copy for saving to avoid altering open doc var dup = doc.duplicate(); dup.flatten(); dup.saveAs(saveFile, jpgSaveOptions, true, Extension.LOWERCASE); dup.close(SaveOptions.DONOTSAVECHANGES); } // run try { main(); } catch (e) { alert("Error: " + e.message); }