I have problems. I want to upload a background that I made from PicMonkey to The Art Catalog section but I can’t. I used the size, 640x1136 but it said it was too short. I used Snipping Tool but it stiill said it was too short. I don’t have premium so I can’t upload it straight away, how can I upload it to do the correct size? (Sorry, I am terrible at explaining.)
If you can resize this:
So it will be 640x1136, I would really appreciate it.