In order to present the best printing quality of metal printing and enhance the viewing experience, we provide free expansion, sharpening and adjustment of contrast and brightness. These adjustments are not only necessary steps, but also one of our standardized printing processes. However , in order to avoid that the printing results do not meet expectations, before printing medium and large works, we highly recommend that you print small-sized products for proofing purposes, or order our samples to experience the actual printed works. state. Remind you that we will not ask for any other special adjustments to individual files, but we will carefully check each image file we receive, and when we find some doubts about the file, including dust spots, post-production traces, etc., we will take the initiative to contact And inform you that we will proceed to the next step after you confirm that it is correct.