By cutting an image into quarters, you can make much larger images. With careful registration, the border between each piece can be seamless. Ashley Kreidler embroidered one of her drawings using this method. She embroidered it onto thin fabric that she had printed with various textures.
Re hooping the fabric and carefully moving the embroidery file on the screen helps you line up each line and area.
Diligence pays off! You can only see the border if you know it's there!
The final piece came out great:
She remade the file in a smaller size. Halfway through the sewing, she switched colors. Because of how the machine maps the stitches, it is not a simple half and half with a clear line. Check out how it mixed the colors: