Why is there a black mark on my image in my printed CEWE PHOTOBOOK?

Black marks are caused by a problem with the red eye correction tool. There is an intermittent problem in the software which can occasionally cause the red eye to try and correct an image in the wrong place causing a black mark. This is something that we are currently working on for our next software version. Please send us an image of the error and your order number via email and a member of our customer service team will be able to send you a voucher code and instructions on how to reorder.