You need this photo resizer tool to easily convert, resize and optimize images 

Use Picture Resize 5 to quickly resize photos then easily copy paste the resized image or clipart into your favorite image editor such as Photoshop. In simple easy steps Resize, Save As…, Import, into a web tool word processor such as Microsoft Word. Fast batch picture resizer which you can convert – optimize – resize photos and images in folders and subfolders. Sa