If you want to align an image with the edge of the printed product, make sure it is dragged fully to the edge of the design (into the grey area). This will ensure when cut, that no thin white borders appear along the edges of your printed product.
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You cannot resize your image any more because it will not print very well.
Double click on the text box to edit
Double click to edit this image
The highlighted (grey) area around the card will be largely cut off after printing