Once you’re inside the Drop Print panel, you’ll see a large area labelled the “Drop Zone”. This is where you upload your high-resolution artwork file.
You can either drag and drop your file directly onto this area or click anywhere inside it to open a standard file selection window. The plugin supports JPEG, PNG, and TIFF file formats and uses a chunked uploading process to reliably handle large files (up to 256MB).
After you add a file, the panel will transform. The Drop Zone will be replaced by an interface showing a preview of your artwork and the product selection list. The plugin will immediately begin analysing your file to detect its pixel dimensions.