This is the main window of ImageHelper where you will be able to drag and drop the source file. 

This menu displays all the basic functions that can be performed using ImageHelper. Select the one you find most appropriate. 

This window allows you to resize an image file. Input the new width and height then click on the Apply button. 

Here you will be able to change the brightness and contrast of the source file. 

And this window allows you to crop the source image. You also have the possibility to reset the action if not satisfied.