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You can use this simple black iPad Mini mockup for your images. The iPad is in portrait view and you can insert a 768x1024px image. This iPad Mini is laying on a slatted wooden table. The slats on the wooden table are thin and placed close together. The wooden floor below the table is lit brightly and made of a lighter color wood. Your image will stand out on this simple stage.
Drag & drop not supported, but you can still upload via this input field: