Unfortunately, you cannot directly upscale a vectorized image, as vector graphics are resolution-independent and don’t follow the same rules as raster images. Scaling up a vectorized image doesn't enhance its quality; therefore, upscaling should be done on the original or background-removed images before vectorizing to ensure the best results.
If you've already removed the background from your image, MysticPOD will preserve that edit when upscaling the image. The final upscaled version will maintain the background removal, ensuring a clean, transparent result without needing further adjustments.