https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/Canon-ip8720/m-p/320095#M1062 You should be able to add any size paper (as I did) by selecting the "Custom" paper size from the Page Size drop-down list. It should be listed at the bottom of this list. NOTE: To access the Custom as well as many other paper sizes including 11 x 17, PAGE LAYOUT must NOT be set to Borderless. If it is, you will not see 11x17 or most of the other many sizes the printer does support, including envelopes Mon, 28 Sep 2020 23:22:05 GMT Kadman59 2020-09-28T23:22:05Z https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/Canon-ip8720/m-p/319251#M1060 I thought ip8720 can print paper size 11x17, however there is no such size to choose , even after using the canon photo editor programs, it says it is not compatible with size 11x17. Fri, 18 Sep 2020 02:34:17 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/Canon-ip8720/m-p/319251#M1060 Ke2home 2020-09-18T02:34:17Z https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/Canon-ip8720/m-p/320095#M1062 You should be able to add any size paper (as I did) by selecting the "Custom" paper size from the Page Size drop-down list. It should be listed at the bottom of this list. NOTE: To access the Custom as well as many other paper sizes including 11 x 17, PAGE LAYOUT must NOT be set to Borderless. If it is, you will not see 11x17 or most of the other many sizes the printer does support, including envelopes Mon, 28 Sep 2020 23:22:05 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/Canon-ip8720/m-p/320095#M1062 Kadman59 2020-09-28T23:22:05Z