How to cut out part of a photo:
Copy your photo into the Photoshop document
If the photo has an X across it, click the check mark or press Return
Be sure you are on the layer you want to edit
Go to Layer>Rasterize>All layers
Go to the Rectangular Marquee tool
Select the area you want to edit and click, hold and drag to select it
Go to Select>Inverse
Press delete
Go to Select>Deselect
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