When the width of the image uploaded to a site is not proper , it may break the design . I have seen many people uploading images of greater width . One thing we can do is to resize the image to a particular size when its uploaded using the php GD graphics library. The php GD graphics library is an awesome one. We can use this library to create captcha images , water mark , rotate and much more.

Yes , now coming to command line . The resizing of an image using command line is pretty simple. Below are the steps which you can use to do this