Java tutorial
//package com.java2s; //License from project: Open Source License import javax.imageio.ImageIO; import java.awt.image.BufferedImage; import java.net.URL; public class Main { public static String getImageDimension(String imgLocation) throws Exception { BufferedImage image = null; try { image = ImageIO.read(new URL(imgLocation)); } catch (Exception e) { // If an error occurs, we consider the image as null. - FB } return (image == null ? "-1,-1" : image.getWidth() + "," + image.getHeight()); } }