Edit a Gallery Image
It's easy to go back and edit an image after you've added it to the Gallery. In fact, editing is the only way to access important tools that are not available when you first upload the image, such as cropping and rotating.
To edit an image in your Gallery:
Select the preview image from the main gallery page.
Click the editing pencil in the top left corner of the image.
This will open the Edit Image pop-up window.
From here, you have several actions you can take: