I own a Canon Pixma Pro-10 and cannot print borderless 11x14 as Canon does not support that print size. I came across the document on the Red River site that explains how to print a full 11x14 on 11x17 paper. Since I had no 11x17 paper I ordered a 20 pack of Ultra Pro Gloss and DL the paper profile provided by Red River. I followed the instructions in the document regarding printing 11x14 on 11x17 and it worked perfectly on my Canon printer. By the way the Ultra Pro Gloss is a high quality paper and will try a different Red River paper in the near future. Thanks Red River.