How to resize a photo
To resize a photo in Photoshop simply open the image in Photoshop and click the Image menu. Select the Image Size option and you will see this window.
To keep the image proportions ensure the Constrain Proportions checkbox is ticked before you begin altering any width or height values. To change the height of the image simply change the value in the input box.
Once you are happy click the OK button and the image will be automatically resized.
