Adding a border to the edges of your Canvas is not possible. However, the two following options are available: mirrored edges and wrapped edges.
With wraparound edges, the borders of the image extend around the sides. This method is great for images that have a sufficient buffer of image material at the edges. On each side, 3 - 5 cm (1.18 x 1.96 in.) of image (depending on the stretcher frame’s depth) will be wrapped around the frame and will no longer be visible from the front.
Mirrored edges are recommended for pictures that cannot afford to have any part of the picture be less visible. On each side, the outer 3 cm (1.18 in.), 5 cm (1.96 in.), or 7 cm (2.75 in.) (depending on the stretcher frame’s depth) are mirrored and printed at the edges before the canvas is wrapped. By mirroring the outer areas of the picture on the sides of the Canvas, we ensure your entire photo remains visible from the front.
We cannot add any border of color to your Canvas because the Canvas is produced by hand with a tolerance margin of a few millimeters. We would therefore not be able to guarantee that your border will fit the edges of the Canvas.